moli232777144 / mtcnn_ncnn Goto Github PK

嗨，楼主，请问如何测试NCNN在硬件（安卓平台）的性能？有这方面的资料可以推荐么？

I was trying to Shift the code to one of my project which has a c++ file but was not able to do that as a project can't have more then one cmake fie so I was not able to do so if anyone has a solution to it please help me out. Any help will be great.

海思960sample检测时间53ms，正常吗？

models 里面 的 bin和 param 不是用里面的 caffemodel 转的吗？ 为什么我用caffemodel 检测会出错，不准确呢？

cd ..
set path=%cd%
%path%\3rdparty\bin\caffe2ncnn.exe %path%\models\det1.prototxt %path%\models\det1.caffemodel %path%\models\det1.param %path%\models\det1.bin
%path%\3rdparty\bin\caffe2ncnn.exe %path%\models\det2.prototxt %path%\models\det2.caffemodel %path%\models\det2.param %path%\models\det2.bin
%path%\3rdparty\bin\caffe2ncnn.exe %path%\models\det3.prototxt %path%\models\det3.caffemodel %path%\models\det3.param %path%\models\det3.bin

我想提高检测速度，考虑输入灰度图，但是检测不出人脸了！如果要支持灰度图，需要做什么改变？
ncnn::Mat gray_img = ncnn::Mat::from_pixels((const unsigned char*)(ncnn_img.data), ncnn::Mat::PIXEL_BGR2GRAY, width, height);

Error:FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':app:externalNativeBuildDebug'.

Build command failed.
Error while executing '/home/wuyong/Android/Sdk/cmake/3.6.4111459/bin/cmake' with arguments {--build /media/wuyong/软件与文件/wenjian/examples_ncnn/caffe/mtcnn_ncnn/mtcnn_ncnn/mtcnn_AS/app/.externalNativeBuild/cmake/debug/armeabi-v7a --target mtcnn}
[1/3] Building CXX object CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn.cpp.o
[2/3] Building CXX object CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn_jni.cpp.o
[3/3] Linking CXX shared library ../../../../build/intermediates/cmake/debug/obj/armeabi-v7a/libmtcnn.so
FAILED: : && /home/wuyong/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ --target=armv7-none-linux-androideabi --gcc-toolchain=/home/wuyong/Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64 --sysroot=/home/wuyong/Android/Sdk/ndk-bundle/sysroot -fPIC -isystem /home/wuyong/Android/Sdk/ndk-bundle/sysroot/usr/include/arm-linux-androideabi -D__ANDROID_API__=17 -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -fopenmp -O2 -fvisibility=hidden -fvisibility-inlines-hidden -fomit-frame-pointer -fstrict-aliasing -ffunction-sections -fdata-sections -ffast-math -std=c++11 -frtti -fexceptions -O0 -fno-limit-debug-info -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libatomic.a -nostdlib++ --sysroot /home/wuyong/Android/Sdk/ndk-bundle/platforms/android-17/arch-arm -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--fix-cortex-a8 -Wl,--exclude-libs,libunwind.a -L/home/wuyong/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libmtcnn.so -o ../../../../build/intermediates/cmake/debug/obj/armeabi-v7a/libmtcnn.so CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn.cpp.o CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn_jni.cpp.o ../../../../src/main/jniLibs/armeabi-v7a/libncnn.a -ljnigraphics -lz /home/wuyong/Android/Sdk/ndk-bundle/platforms/android-17/arch-arm/usr/lib/liblog.so -latomic -lm "/home/wuyong/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libc++_static.a" "/home/wuyong/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libc++abi.a" "/home/wuyong/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libandroid_support.a" "/home/wuyong/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libunwind.a" "-ldl" && :
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::clear(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::clear(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::find_blob_index_by_name(char const*) const: error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::find_layer_index_by_name(char const*) const: error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Extractor::input(char const*, ncnn::Mat const&): error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::layer_registry_entry, std::allocatorncnn::layer_registry_entry >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::layer_registry_entry*, std::vector<ncnn::layer_registry_entry, std::allocatorncnn::layer_registry_entry > >, unsigned int, ncnn::layer_registry_entry const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Layer*, std::allocatorncnn::Layer* >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Layer**, std::vector<ncnn::Layer*, std::allocatorncnn::Layer* > >, unsigned int, ncnn::Layer* const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<int, std::allocator >::_M_fill_insert(__gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator > >, unsigned int, int const&): error: undefined reference to 'std::__throw_length_error(char const*)'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

为什么这里面cd ../3rdparty/src/protobuf/cmake，没有cmake文件

@moli232777144 compile your mtcnn_AS project via android studio 3.0.1, encounter error as flollow:
Error:error: linker command failed with exit code 1 (use -v to see invocation), how can I solvesit ?

如题，我的手机是 华为P20 pro，请问如何处理，谢谢

I try to compile the mtcnn_AS,but it seems that it lacks the modelbin.h .

cmake .. -G"Visual Studio 14 2015 Win64" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=%cd%/install -DProtobuf_INCLUDE_DIR=F:\mtcnn_ncnn\3rdparty\include -DProtobuf_LIBRARIES=F:\mtcnn_ncnn\3rdparty\lib\libprotobuf.lib -DProtobuf_PROTOC_EXECUTABLE=F:\mtcnn_ncnn\3rdparty\bin\protoc.exe
作者您好，我在这一步中，显示没有CMakeList？确实没有CMakeList，怎么编译啊？

你好,请教一下.
我有几个问题(以下都是android问题):
1.你运行在android里面的.bin和.param这2个文件是caffe2ncnn生成还是ncnn2mem生成的?
2.我是用的ncnn2mem生成的在android的效果和caffe2ncnn出来的效果在ubuntu上的效果是不一样的.ps.我使用的是同一张导入的图片.
3.你的libncnn.a是使用build-android所编译出来的吗?
4.我想跟你一样使用
ex.input("data", in);
ncnn::Mat out;
ex.extract("detection_out", out);
我也有看你发的使用安卓端lib,但直接替换进去,都没效果.
谢谢.

When I try to replace mtcnn_ncnn with update-to-date ncnn (without vulkan), the project is successful. But when I try to use ncnn_vulkan, the following error appears. Would you please give a solution how this could be solved, that would be very helpful, Thxs!

Build command failed.
Error while executing process /home/liuwenjie/Android/Sdk/cmake/3.10.2.4988404/bin/ninja with arguments {-C /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/.cxx/cmake/debug/arm64-v8a mtcnn}
ninja: Entering directory /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/.cxx/cmake/debug/arm64-v8a' [1/3] Building CXX object CMakeFiles/mtcnn.dir/mtcnn_jni.cpp.o [2/3] Building CXX object CMakeFiles/mtcnn.dir/mtcnn.cpp.o /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/mtcnn.cpp:461:42: warning: format specifies type 'int' but the argument has type 'std::__ndk1::vector<Bbox, std::__ndk1::allocator<Bbox> >::size_type' (aka 'unsigned long') [-Wformat] printf("firstBbox_.size()=%d\n", firstBbox_.size()); ~~ ^~~~~~~~~~~~~~~~~ %lu /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/mtcnn.cpp:464:43: warning: format specifies type 'int' but the argument has type 'std::__ndk1::vector<Bbox, std::__ndk1::allocator<Bbox> >::size_type' (aka 'unsigned long') [-Wformat] printf("secondBbox_.size()=%d\n", secondBbox_.size()); ~~ ^~~~~~~~~~~~~~~~~~ %lu /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/mtcnn.cpp:471:42: warning: format specifies type 'int' but the argument has type 'std::__ndk1::vector<Bbox, std::__ndk1::allocator<Bbox> >::size_type' (aka 'unsigned long') [-Wformat] printf("thirdBbox_.size()=%d\n", thirdBbox_.size()); ~~ ^~~~~~~~~~~~~~~~~ %lu 3 warnings generated. [3/3] Linking CXX shared library /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/build/intermediates/cmake/debug/obj/arm64-v8a/libmtcnn.so FAILED: /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/build/intermediates/cmake/debug/obj/arm64-v8a/libmtcnn.so : && /home/liuwenjie/Android/Sdk/ndk/20.1.5948944/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ --target=aarch64-none-linux-android24 --gcc-toolchain=/home/liuwenjie/Android/Sdk/ndk/20.1.5948944/toolchains/llvm/prebuilt/linux-x86_64 --sysroot=/home/liuwenjie/Android/Sdk/ndk/20.1.5948944/toolchains/llvm/prebuilt/linux-x86_64/sysroot -fPIC -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -fno-addrsig -Wa,--noexecstack -Wformat -Werror=format-security -frtti -fexceptions -fopenmp -O2 -fvisibility=hidden -fvisibility-inlines-hidden -fomit-frame-pointer -fstrict-aliasing -ffunction-sections -fdata-sections -ffast-math -std=c++11 -frtti -fexceptions -O0 -fno-limit-debug-info -fno-experimental-isel -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libatomic.a -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--no-undefined -Qunused-arguments -Wl,-z,noexecstack -shared -Wl,-soname,libmtcnn.so -o /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/build/intermediates/cmake/debug/obj/arm64-v8a/libmtcnn.so CMakeFiles/mtcnn.dir/mtcnn.cpp.o CMakeFiles/mtcnn.dir/mtcnn_jni.cpp.o /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a -landroid -ljnigraphics -lz /home/liuwenjie/Android/Sdk/ndk/20.1.5948944/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/lib/aarch64-linux-android/24/liblog.so -latomic -lm && : /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(gpu.cpp.o): In function ncnn::create_gpu_instance()':
gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x40): undefined reference to vkEnumerateInstanceExtensionProperties' gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x88): undefined reference to vkEnumerateInstanceExtensionProperties'
gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x4c4): undefined reference to vkCreateInstance' gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x4e4): undefined reference to vkGetInstanceProcAddr'
gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x50c): undefined reference to vkGetInstanceProcAddr' gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x528): undefined reference to vkGetInstanceProcAddr'
gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x544): undefined reference to vkGetInstanceProcAddr' gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x560): undefined reference to vkGetInstanceProcAddr'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(gpu.cpp.o):gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x57c): more undefined references to vkGetInstanceProcAddr' follow /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(gpu.cpp.o): In function ncnn::create_gpu_instance()':
gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x6b0): undefined reference to vkEnumeratePhysicalDevices' gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x700): undefined reference to vkEnumeratePhysicalDevices'
gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x754): undefined reference to vkGetPhysicalDeviceProperties' gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x8c8): undefined reference to vkGetPhysicalDeviceQueueFamilyProperties'
gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0x910): undefined reference to vkGetPhysicalDeviceQueueFamilyProperties' gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0xb40): undefined reference to vkGetPhysicalDeviceMemoryProperties'
gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0xb58): undefined reference to vkEnumerateDeviceExtensionProperties' gpu.cpp:(.text._ZN4ncnn19create_gpu_instanceEv+0xba8): undefined reference to vkEnumerateDeviceExtensionProperties'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(gpu.cpp.o): In function ncnn::destroy_gpu_instance()': gpu.cpp:(.text._ZN4ncnn20destroy_gpu_instanceEv+0x140): undefined reference to vkDestroyInstance'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(gpu.cpp.o): In function ncnn::VulkanDevice::VulkanDevice(int)': gpu.cpp:(.text._ZN4ncnn12VulkanDeviceC2Ei+0xf48): undefined reference to vkCreateDevice'
gpu.cpp:(.text._ZN4ncnn12VulkanDeviceC2Ei+0x1030): undefined reference to vkGetDeviceQueue' gpu.cpp:(.text._ZN4ncnn12VulkanDeviceC2Ei+0x10f8): undefined reference to vkGetDeviceQueue'
gpu.cpp:(.text._ZN4ncnn12VulkanDeviceC2Ei+0x1190): undefined reference to vkGetDeviceQueue' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(gpu.cpp.o): In function ncnn::VulkanDevice::init_device_extension()':
gpu.cpp:(.text._ZN4ncnn12VulkanDevice21init_device_extensionEv+0x28): undefined reference to vkGetDeviceProcAddr' gpu.cpp:(.text._ZN4ncnn12VulkanDevice21init_device_extensionEv+0x40): undefined reference to vkGetDeviceProcAddr'
gpu.cpp:(.text._ZN4ncnn12VulkanDevice21init_device_extensionEv+0x60): undefined reference to vkGetDeviceProcAddr' gpu.cpp:(.text._ZN4ncnn12VulkanDevice21init_device_extensionEv+0x78): undefined reference to vkGetDeviceProcAddr'
gpu.cpp:(.text._ZN4ncnn12VulkanDevice21init_device_extensionEv+0x90): undefined reference to vkGetDeviceProcAddr' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(gpu.cpp.o):gpu.cpp:(.text._ZN4ncnn12VulkanDevice21init_device_extensionEv+0xb0): more undefined references to vkGetDeviceProcAddr' follow
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(gpu.cpp.o): In function ncnn::VulkanDevice::create_shader_module()': gpu.cpp:(.text._ZN4ncnn12VulkanDevice20create_shader_moduleEv+0x1a0): undefined reference to vkCreateShaderModule'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(gpu.cpp.o): In function ncnn::VulkanDevice::~VulkanDevice()': gpu.cpp:(.text._ZN4ncnn12VulkanDeviceD2Ev+0x98): undefined reference to vkDestroyShaderModule'
gpu.cpp:(.text._ZN4ncnn12VulkanDeviceD2Ev+0xc0): undefined reference to vkDestroyDevice' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(gpu.cpp.o): In function ncnn::VulkanDevice::destroy_shader_module()':
gpu.cpp:(.text._ZN4ncnn12VulkanDevice21destroy_shader_moduleEv+0x34): undefined reference to vkDestroyShaderModule' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(gpu.cpp.o): In function ncnn::VulkanDevice::compile_shader_module(unsigned int const*, unsigned long, unsigned int, unsigned int, unsigned int) const':
gpu.cpp:(.text._ZNK4ncnn12VulkanDevice21compile_shader_moduleEPKjmjjj+0x210): undefined reference to vkCreateShaderModule' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(gpu.cpp.o): In function ncnn::VulkanDevice::compile_shader_module(unsigned int const*, unsigned long) const':
gpu.cpp:(.text._ZNK4ncnn12VulkanDevice21compile_shader_moduleEPKjm+0x40): undefined reference to vkCreateShaderModule' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkAllocator::flush(ncnn::VkBufferMemory*)':
allocator.cpp:(.text._ZN4ncnn11VkAllocator5flushEPNS_14VkBufferMemoryE+0x8c): undefined reference to vkFlushMappedMemoryRanges' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkAllocator::invalidate(ncnn::VkBufferMemory*)':
allocator.cpp:(.text._ZN4ncnn11VkAllocator10invalidateEPNS_14VkBufferMemoryE+0x8c): undefined reference to vkInvalidateMappedMemoryRanges' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkAllocator::create_buffer(unsigned long, unsigned int)':
allocator.cpp:(.text._ZN4ncnn11VkAllocator13create_bufferEmj+0x54): undefined reference to vkCreateBuffer' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkAllocator::allocate_memory(unsigned long)':
allocator.cpp:(.text._ZN4ncnn11VkAllocator15allocate_memoryEm+0x48): undefined reference to vkAllocateMemory' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkAllocator::allocate_dedicated_memory(unsigned long, VkBuffer_T*)':
allocator.cpp:(.text._ZN4ncnn11VkAllocator25allocate_dedicated_memoryEmP10VkBuffer_T+0x60): undefined reference to vkAllocateMemory' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkBlobBufferAllocator::clear()':
allocator.cpp:(.text._ZN4ncnn21VkBlobBufferAllocator5clearEv+0x40): undefined reference to vkUnmapMemory' allocator.cpp:(.text._ZN4ncnn21VkBlobBufferAllocator5clearEv+0x54): undefined reference to vkDestroyBuffer'
allocator.cpp:(.text._ZN4ncnn21VkBlobBufferAllocator5clearEv+0x68): undefined reference to vkFreeMemory' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkBlobBufferAllocator::fastMalloc(unsigned long)':
allocator.cpp:(.text._ZN4ncnn21VkBlobBufferAllocator10fastMallocEm+0x188): undefined reference to vkCreateBuffer' allocator.cpp:(.text._ZN4ncnn21VkBlobBufferAllocator10fastMallocEm+0x1a4): undefined reference to vkGetBufferMemoryRequirements'
allocator.cpp:(.text._ZN4ncnn21VkBlobBufferAllocator10fastMallocEm+0x270): undefined reference to vkAllocateMemory' allocator.cpp:(.text._ZN4ncnn21VkBlobBufferAllocator10fastMallocEm+0x290): undefined reference to vkBindBufferMemory'
allocator.cpp:(.text._ZN4ncnn21VkBlobBufferAllocator10fastMallocEm+0x2bc): undefined reference to vkMapMemory' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkWeightBufferAllocator::clear()':
allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator5clearEv+0x48): undefined reference to vkUnmapMemory' allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator5clearEv+0x5c): undefined reference to vkDestroyBuffer'
allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator5clearEv+0x70): undefined reference to vkFreeMemory' allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator5clearEv+0xc4): undefined reference to vkUnmapMemory'
allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator5clearEv+0xd8): undefined reference to vkDestroyBuffer' allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator5clearEv+0xec): undefined reference to vkFreeMemory'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkWeightBufferAllocator::fastMalloc(unsigned long)': allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator10fastMallocEm+0xd8): undefined reference to vkCreateBuffer'
allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator10fastMallocEm+0x1ec): undefined reference to vkGetBufferMemoryRequirements' allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator10fastMallocEm+0x290): undefined reference to vkAllocateMemory'
allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator10fastMallocEm+0x2b0): undefined reference to vkBindBufferMemory' allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator10fastMallocEm+0x2dc): undefined reference to vkMapMemory'
allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator10fastMallocEm+0x534): undefined reference to vkAllocateMemory' allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator10fastMallocEm+0x554): undefined reference to vkBindBufferMemory'
allocator.cpp:(.text._ZN4ncnn23VkWeightBufferAllocator10fastMallocEm+0x580): undefined reference to vkMapMemory' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkStagingBufferAllocator::clear()':
allocator.cpp:(.text._ZN4ncnn24VkStagingBufferAllocator5clearEv+0x44): undefined reference to vkUnmapMemory' allocator.cpp:(.text._ZN4ncnn24VkStagingBufferAllocator5clearEv+0x58): undefined reference to vkDestroyBuffer'
allocator.cpp:(.text._ZN4ncnn24VkStagingBufferAllocator5clearEv+0x6c): undefined reference to vkFreeMemory' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkStagingBufferAllocator::fastMalloc(unsigned long)':
allocator.cpp:(.text._ZN4ncnn24VkStagingBufferAllocator10fastMallocEm+0xb8): undefined reference to vkCreateBuffer' allocator.cpp:(.text._ZN4ncnn24VkStagingBufferAllocator10fastMallocEm+0xd4): undefined reference to vkGetBufferMemoryRequirements'
allocator.cpp:(.text._ZN4ncnn24VkStagingBufferAllocator10fastMallocEm+0x12c): undefined reference to vkAllocateMemory' allocator.cpp:(.text._ZN4ncnn24VkStagingBufferAllocator10fastMallocEm+0x14c): undefined reference to vkBindBufferMemory'
allocator.cpp:(.text._ZN4ncnn24VkStagingBufferAllocator10fastMallocEm+0x170): undefined reference to vkMapMemory' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkWeightStagingBufferAllocator::fastMalloc(unsigned long)':
allocator.cpp:(.text._ZN4ncnn30VkWeightStagingBufferAllocator10fastMallocEm+0x7c): undefined reference to vkCreateBuffer' allocator.cpp:(.text._ZN4ncnn30VkWeightStagingBufferAllocator10fastMallocEm+0x98): undefined reference to vkGetBufferMemoryRequirements'
allocator.cpp:(.text._ZN4ncnn30VkWeightStagingBufferAllocator10fastMallocEm+0xf0): undefined reference to vkAllocateMemory' allocator.cpp:(.text._ZN4ncnn30VkWeightStagingBufferAllocator10fastMallocEm+0x114): undefined reference to vkBindBufferMemory'
allocator.cpp:(.text._ZN4ncnn30VkWeightStagingBufferAllocator10fastMallocEm+0x138): undefined reference to vkMapMemory' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkWeightStagingBufferAllocator::fastFree(ncnn::VkBufferMemory*)':
allocator.cpp:(.text._ZN4ncnn30VkWeightStagingBufferAllocator8fastFreeEPNS_14VkBufferMemoryE+0x20): undefined reference to vkUnmapMemory' allocator.cpp:(.text._ZN4ncnn30VkWeightStagingBufferAllocator8fastFreeEPNS_14VkBufferMemoryE+0x34): undefined reference to vkDestroyBuffer'
allocator.cpp:(.text._ZN4ncnn30VkWeightStagingBufferAllocator8fastFreeEPNS_14VkBufferMemoryE+0x48): undefined reference to vkFreeMemory' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkImageAllocator::create_image(int, int, VkFormat, unsigned int)':
allocator.cpp:(.text._ZN4ncnn16VkImageAllocator12create_imageEii8VkFormatj+0x60): undefined reference to vkCreateImage' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkImageAllocator::create_imageview(VkImage_T*, VkFormat)':
allocator.cpp:(.text._ZN4ncnn16VkImageAllocator16create_imageviewEP9VkImage_T8VkFormat+0x60): undefined reference to vkCreateImageView' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkImageAllocator::allocate_dedicated_memory(unsigned long, VkImage_T*)':
allocator.cpp:(.text._ZN4ncnn16VkImageAllocator25allocate_dedicated_memoryEmP9VkImage_T+0x60): undefined reference to vkAllocateMemory' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkSimpleImageAllocator::fastMalloc(int, int, VkFormat)':
allocator.cpp:(.text._ZN4ncnn22VkSimpleImageAllocator10fastMallocEii8VkFormat+0x8c): undefined reference to vkCreateImage' allocator.cpp:(.text._ZN4ncnn22VkSimpleImageAllocator10fastMallocEii8VkFormat+0xac): undefined reference to vkGetImageMemoryRequirements'
allocator.cpp:(.text._ZN4ncnn22VkSimpleImageAllocator10fastMallocEii8VkFormat+0x120): undefined reference to vkAllocateMemory' allocator.cpp:(.text._ZN4ncnn22VkSimpleImageAllocator10fastMallocEii8VkFormat+0x140): undefined reference to vkBindImageMemory'
allocator.cpp:(.text._ZN4ncnn22VkSimpleImageAllocator10fastMallocEii8VkFormat+0x188): undefined reference to vkCreateImageView' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(allocator.cpp.o): In function ncnn::VkSimpleImageAllocator::fastFree(ncnn::VkImageMemory*)':
allocator.cpp:(.text._ZN4ncnn22VkSimpleImageAllocator8fastFreeEPNS_13VkImageMemoryE+0x24): undefined reference to vkDestroyImageView' allocator.cpp:(.text._ZN4ncnn22VkSimpleImageAllocator8fastFreeEPNS_13VkImageMemoryE+0x38): undefined reference to vkDestroyImage'
allocator.cpp:(.text._ZN4ncnn22VkSimpleImageAllocator8fastFreeEPNS_13VkImageMemoryE+0x4c): undefined reference to vkFreeMemory' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::Command::Command(ncnn::VulkanDevice const*, unsigned int)':
command.cpp:(.text._ZN4ncnn7CommandC2EPKNS_12VulkanDeviceEj+0x54): undefined reference to vkCreateCommandPool' command.cpp:(.text._ZN4ncnn7CommandC2EPKNS_12VulkanDeviceEj+0x88): undefined reference to vkAllocateCommandBuffers'
command.cpp:(.text._ZN4ncnn7CommandC2EPKNS_12VulkanDeviceEj+0xb4): undefined reference to vkCreateFence' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::Command::create_command_pool()':
command.cpp:(.text._ZN4ncnn7Command19create_command_poolEv+0x4c): undefined reference to vkCreateCommandPool' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::Command::create_command_buffer()':
command.cpp:(.text._ZN4ncnn7Command21create_command_bufferEv+0x4c): undefined reference to vkAllocateCommandBuffers' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::Command::~Command()':
command.cpp:(.text._ZN4ncnn7CommandD2Ev+0x2c): undefined reference to vkDestroyFence' command.cpp:(.text._ZN4ncnn7CommandD2Ev+0x44): undefined reference to vkFreeCommandBuffers'
command.cpp:(.text._ZN4ncnn7CommandD2Ev+0x60): undefined reference to vkDestroyCommandPool' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::Command::~Command()':
command.cpp:(.text._ZN4ncnn7CommandD0Ev+0x2c): undefined reference to vkDestroyFence' command.cpp:(.text._ZN4ncnn7CommandD0Ev+0x44): undefined reference to vkFreeCommandBuffers'
command.cpp:(.text._ZN4ncnn7CommandD0Ev+0x58): undefined reference to vkDestroyCommandPool' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::Command::begin_command_buffer()':
command.cpp:(.text._ZN4ncnn7Command20begin_command_bufferEv+0x3c): undefined reference to vkBeginCommandBuffer' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::Command::end_command_buffer()':
command.cpp:(.text._ZN4ncnn7Command18end_command_bufferEv+0xc): undefined reference to vkEndCommandBuffer' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::Command::queue_submit_and_wait_fence()':
command.cpp:(.text._ZN4ncnn7Command27queue_submit_and_wait_fenceEv+0x74): undefined reference to vkQueueSubmit' command.cpp:(.text._ZN4ncnn7Command27queue_submit_and_wait_fenceEv+0x94): undefined reference to vkWaitForFences'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::VkCompute(ncnn::VulkanDevice const*)': command.cpp:(.text._ZN4ncnn9VkComputeC2EPKNS_12VulkanDeviceE+0x7c): undefined reference to vkBeginCommandBuffer'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::~VkCompute()': command.cpp:(.text._ZN4ncnn9VkComputeD2Ev+0x68): undefined reference to vkFreeDescriptorSets'
command.cpp:(.text._ZN4ncnn9VkComputeD2Ev+0x80): undefined reference to vkDestroyDescriptorPool' command.cpp:(.text._ZN4ncnn9VkComputeD2Ev+0x128): undefined reference to vkDestroyFence'
command.cpp:(.text._ZN4ncnn9VkComputeD2Ev+0x140): undefined reference to vkFreeCommandBuffers' command.cpp:(.text._ZN4ncnn9VkComputeD2Ev+0x160): undefined reference to vkDestroyCommandPool'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::record_upload(ncnn::VkMat const&)': command.cpp:(.text._ZN4ncnn9VkCompute13record_uploadERKNS_5VkMatE+0xd0): undefined reference to vkCmdCopyBuffer'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::copy_buffer(VkBuffer_T*, unsigned long, VkBuffer_T*, unsigned long, unsigned long)': command.cpp:(.text._ZN4ncnn9VkCompute11copy_bufferEP10VkBuffer_TmS2_mm+0x38): undefined reference to vkCmdCopyBuffer'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::record_download(ncnn::VkMat const&)': command.cpp:(.text._ZN4ncnn9VkCompute15record_downloadERKNS_5VkMatE+0x118): undefined reference to vkCmdCopyBuffer'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::record_clone(ncnn::VkMat const&, ncnn::VkMat const&)': command.cpp:(.text._ZN4ncnn9VkCompute12record_cloneERKNS_5VkMatES3_+0x118): undefined reference to vkCmdCopyBuffer'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::record_copy_regions(ncnn::VkMat const&, ncnn::VkMat const&, std::__ndk1::vector<VkBufferCopy, std::__ndk1::allocator<VkBufferCopy> > const&)': command.cpp:(.text._ZN4ncnn9VkCompute19record_copy_regionsERKNS_5VkMatES3_RKNSt6__ndk16vectorI12VkBufferCopyNS4_9allocatorIS6_EEEE+0x108): undefined reference to vkCmdCopyBuffer'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o):command.cpp:(.text._ZN4ncnn9VkCompute19copy_buffer_regionsEP10VkBuffer_TS2_RKNSt6__ndk16vectorI12VkBufferCopyNS3_9allocatorIS5_EEEE+0x1c): more undefined references to vkCmdCopyBuffer' follow /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::record_bind_pipeline(VkPipeline_T*)':
command.cpp:(.text._ZN4ncnn9VkCompute20record_bind_pipelineEP12VkPipeline_T+0x44): undefined reference to vkCmdBindPipeline' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::record_update_bindings(VkPipelineLayout_T*, VkDescriptorSetLayout_T*, VkDescriptorUpdateTemplate_T*, std::__ndk1::vector<ncnn::VkMat, std::__ndk1::allocatorncnn::VkMat > const&)':
command.cpp:(.text._ZN4ncnn9VkCompute22record_update_bindingsEP18VkPipelineLayout_TP23VkDescriptorSetLayout_TP28VkDescriptorUpdateTemplate_TRKNSt6__ndk16vectorINS_5VkMatENS7_9allocatorIS9_EEEE+0x168): undefined reference to vkCreateDescriptorPool' command.cpp:(.text._ZN4ncnn9VkCompute22record_update_bindingsEP18VkPipelineLayout_TP23VkDescriptorSetLayout_TP28VkDescriptorUpdateTemplate_TRKNSt6__ndk16vectorINS_5VkMatENS7_9allocatorIS9_EEEE+0x268): undefined reference to vkAllocateDescriptorSets'
command.cpp:(.text._ZN4ncnn9VkCompute22record_update_bindingsEP18VkPipelineLayout_TP23VkDescriptorSetLayout_TP28VkDescriptorUpdateTemplate_TRKNSt6__ndk16vectorINS_5VkMatENS7_9allocatorIS9_EEEE+0x420): undefined reference to vkUpdateDescriptorSets' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::record_push_constants(VkPipelineLayout_T*, std::__ndk1::vector<ncnn::vk_constant_type, std::__ndk1::allocatorncnn::vk_constant_type > const&)':
command.cpp:(.text._ZN4ncnn9VkCompute21record_push_constantsEP18VkPipelineLayout_TRKNSt6__ndk16vectorINS_16vk_constant_typeENS3_9allocatorIS5_EEEE+0x54): undefined reference to vkCmdPushConstants' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::record_dispatch(unsigned int const*)':
command.cpp:(.text._ZN4ncnn9VkCompute15record_dispatchEPKj+0x48): undefined reference to vkCmdDispatch' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::record_queue_transfer_acquire(ncnn::VkMat const&, unsigned int)':
command.cpp:(.text._ZN4ncnn9VkCompute29record_queue_transfer_acquireERKNS_5VkMatEj+0xb0): undefined reference to vkCmdPipelineBarrier' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::queue_transfer_acquire_barrier(VkBuffer_T*, unsigned long, unsigned long, unsigned int)':
command.cpp:(.text._ZN4ncnn9VkCompute30queue_transfer_acquire_barrierEP10VkBuffer_Tmmj+0x6c): undefined reference to vkCmdPipelineBarrier' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::bind_pipeline(VkPipeline_T*)':
command.cpp:(.text._ZN4ncnn9VkCompute13bind_pipelineEP12VkPipeline_T+0xc): undefined reference to vkCmdBindPipeline' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::push_constants(VkPipelineLayout_T*, std::__ndk1::vector<ncnn::vk_constant_type, std::__ndk1::allocatorncnn::vk_constant_type > const&)':
command.cpp:(.text._ZN4ncnn9VkCompute14push_constantsEP18VkPipelineLayout_TRKNSt6__ndk16vectorINS_16vk_constant_typeENS3_9allocatorIS5_EEEE+0x1c): undefined reference to vkCmdPushConstants' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::dispatch(unsigned int const*)':
command.cpp:(.text._ZN4ncnn9VkCompute8dispatchEPKj+0x10): undefined reference to vkCmdDispatch' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::record_transfer_compute_barrier(ncnn::VkMat const&)':
command.cpp:(.text._ZN4ncnn9VkCompute31record_transfer_compute_barrierERKNS_5VkMatE+0xac): undefined reference to vkCmdPipelineBarrier' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::transfer_compute_barrier(VkBuffer_T*, unsigned long, unsigned long)':
command.cpp:(.text._ZN4ncnn9VkCompute24transfer_compute_barrierEP10VkBuffer_Tmm+0x64): undefined reference to vkCmdPipelineBarrier' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::record_compute_transfer_barrier(ncnn::VkMat const&)':
command.cpp:(.text._ZN4ncnn9VkCompute31record_compute_transfer_barrierERKNS_5VkMatE+0xac): undefined reference to vkCmdPipelineBarrier' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::compute_transfer_barrier(VkBuffer_T*, unsigned long, unsigned long)':
command.cpp:(.text._ZN4ncnn9VkCompute24compute_transfer_barrierEP10VkBuffer_Tmm+0x64): undefined reference to vkCmdPipelineBarrier' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::record_compute_compute_barrier(ncnn::VkMat const&)':
command.cpp:(.text._ZN4ncnn9VkCompute30record_compute_compute_barrierERKNS_5VkMatE+0xac): undefined reference to vkCmdPipelineBarrier' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o):command.cpp:(.text._ZN4ncnn9VkCompute23compute_compute_barrierEP10VkBuffer_Tmm+0x64): more undefined references to vkCmdPipelineBarrier' follow
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::submit_and_wait()': command.cpp:(.text._ZN4ncnn9VkCompute15submit_and_waitEv+0x48): undefined reference to vkEndCommandBuffer'
command.cpp:(.text._ZN4ncnn9VkCompute15submit_and_waitEv+0x90): undefined reference to vkBeginCommandBuffer' command.cpp:(.text._ZN4ncnn9VkCompute15submit_and_waitEv+0x190): undefined reference to vkCmdCopyBuffer'
command.cpp:(.text._ZN4ncnn9VkCompute15submit_and_waitEv+0x26c): undefined reference to vkCmdBindPipeline' command.cpp:(.text._ZN4ncnn9VkCompute15submit_and_waitEv+0x284): undefined reference to vkCmdDispatch'
command.cpp:(.text._ZN4ncnn9VkCompute15submit_and_waitEv+0x2e8): undefined reference to vkCmdCopyBuffer' command.cpp:(.text._ZN4ncnn9VkCompute15submit_and_waitEv+0x3f8): undefined reference to vkCmdBindDescriptorSets'
command.cpp:(.text._ZN4ncnn9VkCompute15submit_and_waitEv+0x424): undefined reference to vkCmdPushConstants' command.cpp:(.text._ZN4ncnn9VkCompute15submit_and_waitEv+0x4b0): undefined reference to vkCmdPipelineBarrier'
command.cpp:(.text._ZN4ncnn9VkCompute15submit_and_waitEv+0x4d8): undefined reference to vkEndCommandBuffer' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::bind_descriptorset(VkPipelineLayout_T*, VkDescriptorSet_T*)':
command.cpp:(.text._ZN4ncnn9VkCompute18bind_descriptorsetEP18VkPipelineLayout_TP17VkDescriptorSet_T+0x40): undefined reference to vkCmdBindDescriptorSets' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkCompute::reset()':
command.cpp:(.text._ZN4ncnn9VkCompute5resetEv+0x28): undefined reference to vkResetCommandBuffer' command.cpp:(.text._ZN4ncnn9VkCompute5resetEv+0x40): undefined reference to vkResetFences'
command.cpp:(.text._ZN4ncnn9VkCompute5resetEv+0x78): undefined reference to vkBeginCommandBuffer' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkTransfer::~VkTransfer()':
command.cpp:(.text._ZN4ncnn10VkTransferD2Ev+0x3c): undefined reference to vkDestroyFence' command.cpp:(.text._ZN4ncnn10VkTransferD2Ev+0x54): undefined reference to vkFreeCommandBuffers'
command.cpp:(.text._ZN4ncnn10VkTransferD2Ev+0x70): undefined reference to vkDestroyCommandPool' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkTransfer::~VkTransfer()':
command.cpp:(.text._ZN4ncnn10VkTransferD0Ev+0x3c): undefined reference to vkDestroyFence' command.cpp:(.text._ZN4ncnn10VkTransferD0Ev+0x54): undefined reference to vkFreeCommandBuffers'
command.cpp:(.text._ZN4ncnn10VkTransferD0Ev+0x68): undefined reference to vkDestroyCommandPool' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkTransfer::submit_and_wait()':
command.cpp:(.text._ZN4ncnn10VkTransfer15submit_and_waitEv+0x1dc): undefined reference to vkBeginCommandBuffer' command.cpp:(.text._ZN4ncnn10VkTransfer15submit_and_waitEv+0x228): undefined reference to vkCmdCopyBuffer'
command.cpp:(.text._ZN4ncnn10VkTransfer15submit_and_waitEv+0x2d8): undefined reference to vkCmdPipelineBarrier' command.cpp:(.text._ZN4ncnn10VkTransfer15submit_and_waitEv+0x2ec): undefined reference to vkEndCommandBuffer'
command.cpp:(.text._ZN4ncnn10VkTransfer15submit_and_waitEv+0x364): undefined reference to vkBeginCommandBuffer' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkTransfer::copy_buffer(VkBuffer_T*, unsigned long, VkBuffer_T*, unsigned long, unsigned long)':
command.cpp:(.text._ZN4ncnn10VkTransfer11copy_bufferEP10VkBuffer_TmS2_mm+0x38): undefined reference to vkCmdCopyBuffer' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkTransfer::queue_transfer_release_barrier(VkBuffer_T*, unsigned long, unsigned long, unsigned int)':
command.cpp:(.text._ZN4ncnn10VkTransfer30queue_transfer_release_barrierEP10VkBuffer_Tmmj+0x6c): undefined reference to vkCmdPipelineBarrier' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(command.cpp.o): In function ncnn::VkTransfer::copy_buffer_regions(VkBuffer_T*, VkBuffer_T*, std::__ndk1::vector<VkBufferCopy, std::__ndk1::allocator > const&)':
command.cpp:(.text._ZN4ncnn10VkTransfer19copy_buffer_regionsEP10VkBuffer_TS2_RKNSt6__ndk16vectorI12VkBufferCopyNS3_9allocatorIS5_EEEE+0x1c): undefined reference to vkCmdCopyBuffer' /home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(pipeline.cpp.o): In function ncnn::Pipeline::destroy()':
pipeline.cpp:(.text._ZN4ncnn8Pipeline7destroyEv+0x50): undefined reference to vkDestroyPipeline' pipeline.cpp:(.text._ZN4ncnn8Pipeline7destroyEv+0x6c): undefined reference to vkDestroyPipelineLayout'
pipeline.cpp:(.text._ZN4ncnn8Pipeline7destroyEv+0x88): undefined reference to vkDestroyDescriptorSetLayout' pipeline.cpp:(.text._ZN4ncnn8Pipeline7destroyEv+0xa4): undefined reference to vkDestroyShaderModule'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(pipeline.cpp.o): In function ncnn::Pipeline::create(VkShaderModule_T*, char const*, std::__ndk1::vector<ncnn::vk_specialization_type, std::__ndk1::allocator<ncnn::vk_specialization_type> > const&, int, int)': pipeline.cpp:(.text._ZN4ncnn8Pipeline6createEP16VkShaderModule_TPKcRKNSt6__ndk16vectorINS_22vk_specialization_typeENS5_9allocatorIS7_EEEEii+0xb4): undefined reference to vkCreatePipelineLayout'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(pipeline.cpp.o): In function ncnn::Pipeline::create_descriptorset_layout(int)': pipeline.cpp:(.text._ZN4ncnn8Pipeline27create_descriptorset_layoutEi+0x140): undefined reference to vkCreateDescriptorSetLayout'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(pipeline.cpp.o): In function ncnn::Pipeline::create_pipeline_layout(int)': pipeline.cpp:(.text._ZN4ncnn8Pipeline22create_pipeline_layoutEi+0x88): undefined reference to vkCreatePipelineLayout'
/home/liuwenjie/AndroidStudioProject/mtcnn-linux-as-master/mtcnn_as/app/src/main/cpp/../jniLibs/arm64-v8a/libncnn.a(pipeline.cpp.o): In function ncnn::Pipeline::create_pipeline(VkShaderModule_T*, char const*, std::__ndk1::vector<ncnn::vk_specialization_type, std::__ndk1::allocator<ncnn::vk_specialization_type> > const&)': pipeline.cpp:(.text._ZN4ncnn8Pipeline15create_pipelineEP16VkShaderModule_TPKcRKNSt6__ndk16vectorINS_22vk_specialization_typeENS5_9allocatorIS7_EEEE+0x2d0): undefined reference to vkCreateComputePipelines'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

算法偶尔会出现框错的情况，返回的人脸框比实际人脸大很多，很奇怪
模型是用什么训练集训练的呢？

I'm using NDK 21.0.6113669 for building mtcnn_ncnn android project, but when I run this project, there are many errors. Would you please share a new version w.r.t updated NDK? That would be very kind. Thanks!

org.gradle.api.ProjectConfigurationException: A problem occurred configuring project ':app'.
at org.gradle.configuration.project.LifecycleProjectEvaluator.addConfigurationFailure(LifecycleProjectEvaluator.java:79)
at org.gradle.configuration.project.LifecycleProjectEvaluator.notifyAfterEvaluate(LifecycleProjectEvaluator.java:74)
at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:61)
at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:540)
at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:93)
at org.gradle.execution.TaskPathProjectEvaluator.configureHierarchy(TaskPathProjectEvaluator.java:47)
at org.gradle.configuration.DefaultBuildConfigurer.configure(DefaultBuildConfigurer.java:35)
at org.gradle.initialization.DefaultGradleLauncher$2.run(DefaultGradleLauncher.java:124)
at org.gradle.internal.Factories$1.create(Factories.java:22)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:53)
at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:121)
at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:32)
at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:98)
at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:92)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:63)
at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:92)
at org.gradle.initialization.DefaultGradleLauncher.getBuildAnalysis(DefaultGradleLauncher.java:88)
at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.configure(InProcessBuildActionExecuter.java:107)
at org.gradle.tooling.internal.provider.runner.ClientProvidedBuildActionRunner.run(ClientProvidedBuildActionRunner.java:45)
at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
at org.gradle.tooling.internal.provider.runner.SubscribableBuildActionRunner.run(SubscribableBuildActionRunner.java:58)
at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:48)
at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:30)
at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:81)
at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:46)
at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:52)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
at org.gradle.util.Swapper.swap(Swapper.java:38)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.health.DaemonHealthTracker.execute(DaemonHealthTracker.java:47)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.health.HintGCAfterBuild.execute(HintGCAfterBuild.java:41)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:237)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:210)
at com.android.build.gradle.internal.ndk.NdkHandler.getPlatformVersion(NdkHandler.java:130)
at com.android.build.gradle.internal.ndk.NdkHandler.supports64Bits(NdkHandler.java:234)
at com.android.build.gradle.internal.ndk.NdkHandler.getSupportedAbis(NdkHandler.java:297)
at com.android.build.gradle.tasks.ExternalNativeJsonGenerator.create(ExternalNativeJsonGenerator.java:569)
at com.android.build.gradle.internal.TaskManager.createExternalNativeBuildJsonGenerators(TaskManager.java:1225)
at com.android.build.gradle.internal.ApplicationTaskManager$11.call(ApplicationTaskManager.java:219)
at com.android.build.gradle.internal.ApplicationTaskManager$11.call(ApplicationTaskManager.java:216)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:156)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:120)
at com.android.build.gradle.internal.ApplicationTaskManager.createTasksForVariantData(ApplicationTaskManager.java:214)
at com.android.build.gradle.internal.VariantManager.createTasksForVariantData(VariantManager.java:485)
at com.android.build.gradle.internal.VariantManager$3.call(VariantManager.java:293)
at com.android.build.gradle.internal.VariantManager$3.call(VariantManager.java:290)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:156)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:120)
at com.android.build.gradle.internal.profile.SpanRecorders.record(SpanRecorders.java:44)
at com.android.build.gradle.internal.VariantManager.createAndroidTasks(VariantManager.java:286)
at com.android.build.gradle.BasePlugin$11.call(BasePlugin.java:688)
at com.android.build.gradle.BasePlugin$11.call(BasePlugin.java:685)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:156)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:120)
at com.android.build.gradle.BasePlugin.createAndroidTasks(BasePlugin.java:683)
at com.android.build.gradle.BasePlugin$10.call(BasePlugin.java:608)
at com.android.build.gradle.BasePlugin$10.call(BasePlugin.java:605)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:156)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:120)
at com.android.build.gradle.BasePlugin.lambda$createTasks$1(BasePlugin.java:603)
at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:93)
at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:82)
at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:44)
at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:79)
at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:30)
at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at com.sun.proxy.$Proxy11.afterEvaluate(Unknown Source)
at org.gradle.configuration.project.LifecycleProjectEvaluator.notifyAfterEvaluate(LifecycleProjectEvaluator.java:67)
... 57 more

在看结构PNET input 应该是12123,但是源码中的输入为什么会变成多尺度的呢?

CMake Warning at C:/Program Files/CMake/share/cmake-3.13/Modules/FindProtobuf.cmake:499 (message):
Protobuf compiler version 3.5.0 doesn't match library version
ERROR.ERROR.ERROR
Call Stack (most recent call first):
tools/onnx/CMakeLists.txt:2 (find_package)

-- Configuring incomplete, errors occurred!

请问你们用的cmake是什么版本啊？有没有遇到我这个问题

由于NDK用了比较新的版本，所以也跟着用了clang
导致了以下的报错

Build command failed. Error while executing process D:\Android\android-sdk\cmake\3.10.2.4988404\bin\ninja.exe with arguments {-C D:\plantainz\OuO_DeepLearning\examples\mtcnn_ncnn\mtcnn_AS\app\.cxx\cmake\debug\armeabi-v7a mtcnn} ninja: Entering directory D:\plantainz\OuO_DeepLearning\examples\mtcnn_ncnn\mtcnn_AS\app.cxx\cmake\debug\armeabi-v7a'
[1/1] Linking CXX shared library ........\build\intermediates\cmake\debug\obj\armeabi-v7a\libmtcnn.so
FAILED: ../../../../build/intermediates/cmake/debug/obj/armeabi-v7a/libmtcnn.so
cmd.exe /C "cd . && D:\Android\android-sdk\ndk\21.1.6352462\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=armv7-none-linux-androideabi17 --gcc-toolchain=D:/Android/android-sdk/ndk/21.1.6352462/toolchains/llvm/prebuilt/windows-x86_64 --sysroot=D:/Android/android-sdk/ndk/21.1.6352462/toolchains/llvm/prebuilt/windows-x86_64/sysroot -fPIC -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -march=armv7-a -mthumb -Wformat -Werror=format-security -frtti -fexceptions -fopenmp -O2 -fvisibility=hidden -fvisibility-inlines-hidden -fomit-frame-pointer -fstrict-aliasing -ffunction-sections -fdata-sections -ffast-math -std=c++11 -frtti -fexceptions -O0 -fno-limit-debug-info -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libgcc_real.a -Wl,--exclude-libs,libatomic.a -static-libstdc++ -Wl,--build-id -Wl,--fatal-warnings -Wl,--exclude-libs,libunwind.a -Wl,--no-undefined -Qunused-arguments -shared -Wl,-soname,libmtcnn.so -o ........\build\intermediates\cmake\debug\obj\armeabi-v7a\libmtcnn.so CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn.cpp.o CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn_jni.cpp.o ../../../../src/main/jniLibs/armeabi-v7a/libncnn.a -ljnigraphics -lz -llog -latomic -lm && cd ."
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::clear(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::clear(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::find_blob_index_by_name(char const*) const: error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::find_layer_index_by_name(char const*) const: error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Extractor::input(char const*, ncnn::Mat const&): error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::layer_registry_entry, std::allocatorncnn::layer_registry_entry >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::layer_registry_entry*, std::vector<ncnn::layer_registry_entry, std::allocatorncnn::layer_registry_entry > >, unsigned int, ncnn::layer_registry_entry const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Layer*, std::allocatorncnn::Layer* >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Layer**, std::vector<ncnn::Layer*, std::allocatorncnn::Layer* > >, unsigned int, ncnn::Layer* const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<int, std::allocator >::_M_fill_insert(__gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator > >, unsigned int, int const&): error: undefined reference to 'std::__throw_length_error(char const*)'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.`

想问问怎么解决！是只能降NDK去用gcc吗

Build command failed.
Error while executing '/Users/bitmain/Library/Android/sdk/cmake/3.6.4111459/bin/cmake' with arguments {--build /Users/bitmain/Work/openLib/mtcnn_ncnn/mtcnn_AS/app/.externalNativeBuild/cmake/debug/armeabi-v7a --target mtcnn}
[1/3] Building CXX object CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn.cpp.o
[2/3] Building CXX object CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn_jni.cpp.o
[3/3] Linking CXX shared library ../../../../build/intermediates/cmake/debug/obj/armeabi-v7a/libmtcnn.so
FAILED: : && /Users/bitmain/Library/Android/sdk/ndk-bundle/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang++ --target=armv7-none-linux-androideabi --gcc-toolchain=/Users/bitmain/Library/Android/sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64 --sysroot=/Users/bitmain/Library/Android/sdk/ndk-bundle/sysroot -fPIC -isystem /Users/bitmain/Library/Android/sdk/ndk-bundle/sysroot/usr/include/arm-linux-androideabi -D__ANDROID_API__=17 -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -fopenmp -O2 -fvisibility=hidden -fvisibility-inlines-hidden -fomit-frame-pointer -fstrict-aliasing -ffunction-sections -fdata-sections -ffast-math -std=c++11 -frtti -fexceptions -O0 -fno-limit-debug-info -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libatomic.a -nostdlib++ --sysroot /Users/bitmain/Library/Android/sdk/ndk-bundle/platforms/android-17/arch-arm -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--fix-cortex-a8 -Wl,--exclude-libs,libunwind.a -L/Users/bitmain/Library/Android/sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libmtcnn.so -o ../../../../build/intermediates/cmake/debug/obj/armeabi-v7a/libmtcnn.so CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn.cpp.o CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn_jni.cpp.o ../../../../src/main/jniLibs/armeabi-v7a/libncnn.a -ljnigraphics -lz -llog -latomic -lm "/Users/bitmain/Library/Android/sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libc++_static.a" "/Users/bitmain/Library/Android/sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libc++abi.a" "/Users/bitmain/Library/Android/sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libandroid_support.a" "/Users/bitmain/Library/Android/sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libunwind.a" "-ldl" && :
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::clear(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::clear(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::find_blob_index_by_name(char const*) const: error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::find_layer_index_by_name(char const*) const: error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Extractor::input(char const*, ncnn::Mat const&): error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::layer_registry_entry, std::allocatorncnn::layer_registry_entry >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::layer_registry_entry*, std::vector<ncnn::layer_registry_entry, std::allocatorncnn::layer_registry_entry > >, unsigned int, ncnn::layer_registry_entry const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Layer*, std::allocatorncnn::Layer* >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Layer**, std::vector<ncnn::Layer*, std::allocatorncnn::Layer* > >, unsigned int, ncnn::Layer* const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<int, std::allocator >::_M_fill_insert(__gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator > >, unsigned int, int const&): error: undefined reference to 'std::__throw_length_error(char const*)'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

急需帮助，谢谢

很感谢你共享源码供大家学习，我成功的编译了你的代码，人脸的识别速度非常快。不过，我发现在windows上CPU占用非常高，我这里有90%。请问关于CPU占用优化可以从哪里入手？

org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:externalNativeBuildDebug'.
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:69)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)
at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:66)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:52)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:203)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:185)
at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:66)
at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:50)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:25)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:110)
at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37)
at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
at org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23)
at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43)
at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30)
at org.gradle.initialization.DefaultGradleLauncher$4.run(DefaultGradleLauncher.java:153)
at org.gradle.internal.Factories$1.create(Factories.java:22)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:53)
at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:150)
at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:32)
at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:98)
at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:92)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:63)
at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:92)
at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:83)
at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:99)
at org.gradle.tooling.internal.provider.runner.BuildModelActionRunner.run(BuildModelActionRunner.java:46)
at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
at org.gradle.tooling.internal.provider.runner.SubscribableBuildActionRunner.run(SubscribableBuildActionRunner.java:58)
at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:48)
at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:30)
at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:81)
at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:46)
at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:52)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
at org.gradle.util.Swapper.swap(Swapper.java:38)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.health.DaemonHealthTracker.execute(DaemonHealthTracker.java:47)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.health.HintGCAfterBuild.execute(HintGCAfterBuild.java:41)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:237)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.gradle.internal.UncheckedException: Build command failed.
Error while executing 'C:\Users\vcvyc\AppData\Local\Android\Sdk\cmake\3.6.4111459\bin\cmake.exe' with arguments {--build E:\data\Document\ASProjects\mtcnn_ncnn\mtcnn_AS\app.externalNativeBuild\cmake\debug\armeabi-v7a --target mtcnn}
[1/3] Building CXX object CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn.cpp.o
[2/3] Building CXX object CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn_jni.cpp.o
[3/3] Linking CXX shared library ........\build\intermediates\cmake\debug\obj\armeabi-v7a\libmtcnn.so
FAILED: cmd.exe /C "cd . && C:\Users\vcvyc\AppData\Local\Android\Sdk\ndk-bundle\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=armv7-none-linux-androideabi --gcc-toolchain=C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64 --sysroot=C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sysroot -fPIC -isystem C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sysroot/usr/include/arm-linux-androideabi -D__ANDROID_API__=17 -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -fopenmp -O2 -fvisibility=hidden -fvisibility-inlines-hidden -fomit-frame-pointer -fstrict-aliasing -ffunction-sections -fdata-sections -ffast-math -std=c++11 -frtti -fexceptions -O0 -fno-limit-debug-info -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libatomic.a -nostdlib++ --sysroot C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/platforms/android-17/arch-arm -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--fix-cortex-a8 -Wl,--exclude-libs,libunwind.a -LC:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libmtcnn.so -o ........\build\intermediates\cmake\debug\obj\armeabi-v7a\libmtcnn.so CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn.cpp.o CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn_jni.cpp.o ../../../../src/main/jniLibs/armeabi-v7a/libncnn.a -ljnigraphics -lz -llog -latomic -lm "C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libc++_static.a" "C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libc++abi.a" "C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libandroid_support.a" "C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libunwind.a" "-ldl" && cd ."
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::clear(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::clear(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::find_blob_index_by_name(char const*) const: error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::find_layer_index_by_name(char const*) const: error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Extractor::input(char const*, ncnn::Mat const&): error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::layer_registry_entry, std::allocatorncnn::layer_registry_entry >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::layer_registry_entry*, std::vector<ncnn::layer_registry_entry, std::allocatorncnn::layer_registry_entry > >, unsigned int, ncnn::layer_registry_entry const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Layer*, std::allocatorncnn::Layer* >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Layer**, std::vector<ncnn::Layer*, std::allocatorncnn::Layer* > >, unsigned int, ncnn::Layer* const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<int, std::allocator >::_M_fill_insert(__gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator > >, unsigned int, int const&): error: undefined reference to 'std::__throw_length_error(char const*)'
clang++.exe: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

at org.gradle.internal.UncheckedException.throwAsUncheckedException(UncheckedException.java:45)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:78)
at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.doExecute(AnnotationProcessingTaskFactory.java:228)
at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:221)
at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:210)
at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:621)
at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:604)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
... 73 more

Caused by: Build command failed.
Error while executing 'C:\Users\vcvyc\AppData\Local\Android\Sdk\cmake\3.6.4111459\bin\cmake.exe' with arguments {--build E:\data\Document\ASProjects\mtcnn_ncnn\mtcnn_AS\app.externalNativeBuild\cmake\debug\armeabi-v7a --target mtcnn}
[1/3] Building CXX object CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn.cpp.o
[2/3] Building CXX object CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn_jni.cpp.o
[3/3] Linking CXX shared library ........\build\intermediates\cmake\debug\obj\armeabi-v7a\libmtcnn.so
FAILED: cmd.exe /C "cd . && C:\Users\vcvyc\AppData\Local\Android\Sdk\ndk-bundle\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=armv7-none-linux-androideabi --gcc-toolchain=C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64 --sysroot=C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sysroot -fPIC -isystem C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sysroot/usr/include/arm-linux-androideabi -D__ANDROID_API__=17 -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -mthumb -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -fopenmp -O2 -fvisibility=hidden -fvisibility-inlines-hidden -fomit-frame-pointer -fstrict-aliasing -ffunction-sections -fdata-sections -ffast-math -std=c++11 -frtti -fexceptions -O0 -fno-limit-debug-info -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libatomic.a -nostdlib++ --sysroot C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/platforms/android-17/arch-arm -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -Wl,--fix-cortex-a8 -Wl,--exclude-libs,libunwind.a -LC:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libmtcnn.so -o ........\build\intermediates\cmake\debug\obj\armeabi-v7a\libmtcnn.so CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn.cpp.o CMakeFiles/mtcnn.dir/src/main/cpp/mtcnn_jni.cpp.o ../../../../src/main/jniLibs/armeabi-v7a/libncnn.a -ljnigraphics -lz -llog -latomic -lm "C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libc++_static.a" "C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libc++abi.a" "C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libandroid_support.a" "C:/Users/vcvyc/AppData/Local/Android/Sdk/ndk-bundle/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libunwind.a" "-ldl" && cd ."
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::~Net(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::clear(): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::clear(): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::_Rep::_M_destroy(std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(char const*, std::allocator const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::assign(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::load_param(__sFILE*): error: undefined reference to 'std::string::_Rep::_S_empty_rep_storage'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::find_blob_index_by_name(char const*) const: error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Net::find_layer_index_by_name(char const*) const: error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function ncnn::Extractor::input(char const*, ncnn::Mat const&): error: undefined reference to 'std::string::compare(char const*) const'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::layer_registry_entry, std::allocatorncnn::layer_registry_entry >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::layer_registry_entry*, std::vector<ncnn::layer_registry_entry, std::allocatorncnn::layer_registry_entry > >, unsigned int, ncnn::layer_registry_entry const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Layer*, std::allocatorncnn::Layer* >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Layer**, std::vector<ncnn::Layer*, std::allocatorncnn::Layer* > >, unsigned int, ncnn::Layer* const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::basic_string<char, std::char_traits, std::allocator >::basic_string(std::string const&)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<ncnn::Blob, std::allocatorncnn::Blob >::_M_fill_insert(__gnu_cxx::__normal_iterator<ncnn::Blob*, std::vector<ncnn::Blob, std::allocatorncnn::Blob > >, unsigned int, ncnn::Blob const&): error: undefined reference to 'std::__throw_length_error(char const*)'
../../../../src/main/jniLibs/armeabi-v7a/libncnn.a(net.cpp.o):/home/nihui/osd/ncnn/src/net.cpp:function std::vector<int, std::allocator >::_M_fill_insert(__gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator > >, unsigned int, int const&): error: undefined reference to 'std::__throw_length_error(char const*)'
clang++.exe: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

at com.android.build.gradle.tasks.ExternalNativeBuildTaskUtils.executeBuildProcessAndLogError(ExternalNativeBuildTaskUtils.java:233)
at com.android.build.gradle.tasks.ExternalNativeBuildTask.executeProcessBatch(ExternalNativeBuildTask.java:231)
at com.android.build.gradle.tasks.ExternalNativeBuildTask.build(ExternalNativeBuildTask.java:163)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:75)
... 80 more

请教下安卓端使用的libncnn.a文件是在哪一步生成的

用AS build 报错:
mtcnn_ncnn\mtcnn_AS\app\src\main\cpp\mtcnn.cpp

Error:(95, 27) error: use of undeclared identifier 'round'
Error:(96, 27) error: use of undeclared identifier 'round'
Error:(97, 27) error: use of undeclared identifier 'round'
Error:(98, 27) error: use of undeclared identifier 'round'
Error:(189, 24) error: use of undeclared identifier 'round'
Error:(190, 24) error: use of undeclared identifier 'round'
Error:(191, 24) error: use of undeclared identifier 'round'
Error:(192, 24) error: use of undeclared identifier 'round'
Error:(217, 23) error: use of undeclared identifier 'ceil'
Error:(218, 23) error: use of undeclared identifier 'ceil'

请问是什么原因，直接用AS打开mtcnn_as项目

你好，请问MTCNN现在用到的caffe models是哪里来的？有训练代码吗？
我原来用tensorflow，不知道这个caffe的训练结果是哪里来的。
谢谢！

@moli232777144 你好，看了你的代码，写的很详细，想问一下，安卓端你实现了摄像头实时检测了吗？怎么来验证呢？

vs2017 + opencv3.2
错误 C2065 “t”: 未声明的标识符 mtcnn_ncnn E:\dev\workspace\mtcnn_ncnn\3rdparty\include\Opencv\opencv2\core\fast_math.hpp 97

错误 C2065 “__m128d”: 未声明的标识符 mtcnn_ncnn E:\dev\opencv3.4.3\build\include\opencv2\core\fast_math.hpp 105

错误 C3861 “_mm_cmplt_sd”: 找不到标识符 mtcnn_ncnn E:\dev\workspace\mtcnn_ncnn\3rdparty\include\Opencv\opencv2\core\fast_math.hpp 136

切换 vs2017 + opencv3.4.3， 问题依旧。。。

不知道什么错，c++小白，请求帮助，感谢！！！

我试图移植到linux环境中，结果报如下错误
[ 33%] Building CXX object CMakeFiles/mtcnn_ncnn.dir/src/mtcnn.cpp.o
/root/ai/mtcnn_cnn/mtcnn_cnn/src/mtcnn.cpp: In member function ‘void MTCNN::RNet()’:
/root/ai/mtcnn_cnn/mtcnn_cnn/src/mtcnn.cpp:226:31: warning: pointer of type ‘void ’ used in arithmetic [-Wpointer-arith]
if((score.data+score.cstep) > threshold[1]){
^
/root/ai/mtcnn_cnn/mtcnn_cnn/src/mtcnn.cpp:226:36: error: ‘void*’ is not a pointer-to-object type
if(*(score.data+score.cstep) > threshold[1]){
^
CMakeFiles/mtcnn_ncnn.dir/build.make:62: recipe for target 'CMakeFiles/mtcnn_ncnn.dir/src/mtcnn.cpp.o' failed
make[2]: *** [CMakeFiles/mtcnn_ncnn.dir/src/mtcnn.cpp.o] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/mtcnn_ncnn.dir/all' failed
make[1]: *** [CMakeFiles/mtcnn_ncnn.dir/all] Error 2
Makefile:83: recipe for target 'all' failed
make: *** [all] Error 2

有几点疑问：
1.为什么 说这个速度跟人脸数相关？我测试过二张大小一样的图片1600x900，无人脸的速度与有10个人脸的无太大差异，能否认为refine, nms这些操作在conv中是相当少耗时的？
2.看到你说“ncnn不是专门在win端的，set_num_threads设置2看看，是不是默认的线程太大”， 这个数值我发现设为cpu 线程数时最快，但在另一台机上是cpu核数时最快

@moli232777144

你好，有幸看到你的工程资源。环境安装完后，测试时p网络输出正常，r网络输出为空。你测试时是否一切正常？同时在mtcnn的226行（if((score.data+score.cstep) > threshold[1])），编译报错。此处应该需要将void强转为float*。

build完成，并导出apk，放到模拟器上安装成功，但是双击就闪退

能编译运行，但是在sample.jpg上找不到目标，输出如下：

find_blob_index_by_name data failed
find_blob_index_by_name data failed
find_blob_index_by_name data failed
firstBbox_.size()=46
secondBbox_.size()=0
time608ms

hi moli232777144，
我将你提供的模型和代码移植到ios端，测试时发现在RNet时返回的secondBbox_的个数已经是0。究其原因是在PNet()后返回的score和对应的boundingbox 和 windows的不一样。导致nms后的firstBbox_ 已经有问题了。请帮忙分析下原因，谢谢！

看网上的资料说 int8 量化后可以减少模型体积，同时提高运算速度。
请问这个项目可以提供 int8 量化的模型吗？

很多平台，2个线程会略微好一些，更多线程反而引入一些cpu对线程管理的问题，最后反而速度更慢。（使用openmp）
但是看您的数据，多线程下，加速非常明显，请问是如何实现的？

自己用caffe 训练的mtcnn ，在caffe 上能正常使用，转为ncnn 后，使用项目中提供的程序不能检测到人脸，请问什么地方会有不同吗？

参照readme,在PC端进行编译。步骤如下：
1.下载源码并更新子模块
2.编译protobuf 通过
3. 编译ncnn
cd ../3rdparty/src/ncnn
mkdir build
cd build
cmake .. -G "Visual Studio 16 2019" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=%cd%/install -DProtobuf_INCLUDE_DIR=E:\hawk-skys\mtcnn_ncnn\mtcnn_ncnn\3rdparty\include -DProtobuf_LIBRARIES=E:\hawk-skys\mtcnn_ncnn\mtcnn_ncnn\3rdparty\lib\libprotobuf.lib -DProtobuf_PROTOC_EXECUTABLE=E:\hawk-skys\mtcnn_ncnn\mtcnn_ncnn\3rdparty\bin\protoc.exe

出错信息如下：
E:\hawk-skys\mtcnn_ncnn\mtcnn_ncnn\3rdparty\src\ncnn\build>cmake .. -G "Visual Studio 16 2019" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=%cd%/install -DProtobuf_INCLUDE_DIR=E:\hawk-skys\mtcnn_ncnn\mtcnn_ncnn\3rdparty\include -DProtobuf_LIBRARIES=E:\hawk-skys\mtcnn_ncnn\mtcnn_ncnn\3rdparty\lib\libprotobuf.lib -DProtobuf_PROTOC_EXECUTABLE=E:\hawk-skys\mtcnn_ncnn\mtcnn_ncnn\3rdparty\bin\protoc.exe
-- CMAKE_INSTALL_PREFIX = E:\hawk-skys\mtcnn_ncnn\mtcnn_ncnn\3rdparty\src\ncnn\build/install
-- Target arch: x86
-- OpenCV library: C:/Users/Administrator/Downloads/opencv/build
-- version: 3.4.10
-- libraries: opencv_world
-- include path: C:/Users/Administrator/Downloads/opencv/build/include;C:/Users/Administrator/Downloads/opencv/build/include/opencv
CMake Error at C:/Program Files/CMake/share/cmake-3.17/Modules/FindProtobuf.cmake:469 (file):
file STRINGS file
"E:/hawk-skys/mtcnn_ncnn/mtcnn_ncnn/3rdparty/include/google/protobuf/stubs/common.h"
cannot be read.
Call Stack (most recent call first):
tools/caffe/CMakeLists.txt:2 (find_package)

CMake Error at C:/Program Files/CMake/share/cmake-3.17/Modules/FindProtobuf.cmake:475 (math):
math cannot parse the expression: " / 1000000": syntax error, unexpected
exp_DIVIDE (2).
Call Stack (most recent call first):
tools/caffe/CMakeLists.txt:2 (find_package)

CMake Error at C:/Program Files/CMake/share/cmake-3.17/Modules/FindProtobuf.cmake:476 (math):
math cannot parse the expression: " / 1000 % 1000": syntax error,
unexpected exp_DIVIDE (2).
Call Stack (most recent call first):
tools/caffe/CMakeLists.txt:2 (find_package)

CMake Error at C:/Program Files/CMake/share/cmake-3.17/Modules/FindProtobuf.cmake:477 (math):
math cannot parse the expression: " % 1000": syntax error, unexpected
exp_MOD (2).
Call Stack (most recent call first):
tools/caffe/CMakeLists.txt:2 (find_package)

CMake Error at C:/Program Files/CMake/share/cmake-3.17/Modules/FindProtobuf.cmake:469 (file):
file STRINGS file
"E:/hawk-skys/mtcnn_ncnn/mtcnn_ncnn/3rdparty/include/google/protobuf/stubs/common.h"
cannot be read.
Call Stack (most recent call first):
tools/onnx/CMakeLists.txt:2 (find_package)

CMake Error at C:/Program Files/CMake/share/cmake-3.17/Modules/FindProtobuf.cmake:475 (math):
math cannot parse the expression: " / 1000000": syntax error, unexpected
exp_DIVIDE (2).
Call Stack (most recent call first):
tools/onnx/CMakeLists.txt:2 (find_package)

CMake Error at C:/Program Files/CMake/share/cmake-3.17/Modules/FindProtobuf.cmake:476 (math):
math cannot parse the expression: " / 1000 % 1000": syntax error,
unexpected exp_DIVIDE (2).
Call Stack (most recent call first):
tools/onnx/CMakeLists.txt:2 (find_package)

CMake Error at C:/Program Files/CMake/share/cmake-3.17/Modules/FindProtobuf.cmake:477 (math):
math cannot parse the expression: " % 1000": syntax error, unexpected
exp_MOD (2).
Call Stack (most recent call first):
tools/onnx/CMakeLists.txt:2 (find_package)

CMake Warning at tools/quantize/CMakeLists.txt:26 (message):
OpenCV not found, quantize tools won't be built

-- Configuring incomplete, errors occurred!
See also "E:/hawk-skys/mtcnn_ncnn/mtcnn_ncnn/3rdparty/src/ncnn/build/CMakeFiles/CMakeOutput.log".

Error:error: undefined reference to 'std::string::assign(std::string const&)'
Error:error: linker command failed with