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已经安装了Eigen ,并且在/usr/include/eigen3目录下执行了
sudo cp Eigen/ .. -R
sudo cp unsupported/ .. -R

在KDevelop 中也可以引用到 ,但还是报这个错,详情是:

In file included from /home/xhb/.conan/data/pcl/1.9.1/bashbug/stable/build/1dbc8a6a865a8fad699417711b0b0b490d4d2d18/pcl/sample_consensus/src/sac_model_circle.cpp:39:
In file included from /home/xhb/.conan/data/pcl/1.9.1/bashbug/stable/build/1dbc8a6a865a8fad699417711b0b0b490d4d2d18/pcl/sample_consensus/include/pcl/sample_consensus/impl/sac_model_circle.hpp:44:
/home/xhb/.conan/data/pcl/1.9.1/bashbug/stable/build/1dbc8a6a865a8fad699417711b0b0b490d4d2d18/pcl/sample_consensus/include/pcl/sample_consensus/eigen.h:48:10: fatal error: 'unsupported/Eigen/NonLinearOptimization' file not found
#include <unsupported/Eigen/NonLinearOptimization>
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
sample_consensus/CMakeFiles/pcl_sample_consensus.dir/build.make:86: recipe for target 'sample_consensus/CMakeFiles/pcl_sample_consensus.dir/src/sac_model_circle.cpp.o' failed
make[2]: *** [sample_consensus/CMakeFiles/pcl_sample_consensus.dir/src/sac_model_circle.cpp.o] Error 1
CMakeFiles/Makefile2:339: recipe for target 'sample_consensus/CMakeFiles/pcl_sample_consensus.dir/all' failed
make[1]: *** [sample_consensus/CMakeFiles/pcl_sample_consensus.dir/all] Error 2
make[1]: *** 正在等待未完成的任务....

CMake Error at cmake/conan.cmake:399 (message):
Conan install failed='1'
Call Stack (most recent call first):
cmake/conan.cmake:485 (conan_cmake_install)
CMakeLists.txt:7 (conan_cmake_run)

This the error i received when i run the program with JDK 11

The current master has a few outdated stuff causing a compile error. I managed to get a working copy with thsese fixes:

1. conanfile.py for boost. The link to download boost is outdated. fix:
   Line48: tools.get("https://boostorg.jfrog.io/artifactory/main/release/{}/source/{}.tar.gz".format(self.version, self.folder_name))

2)conanfile.py for pcl. The library name was outdated. fix:
Line66: self.requires("eigen/3.3.7")

Cross-build from 'Linux:x86_64' to 'Android:armv8'
Installing (downloading, building) binaries...
android-toolchain/r20@bashbug/stable: Already installed!
lz4/1.9.1@bashbug/stable: Already installed!
flann/1.9.1@bashbug/stable: Applying build-requirement: android-toolchain/r20@bashbug/stable
flann/1.9.1@bashbug/stable: WARN: Build folder is dirty, removing it: /home/docker/.conan/data/flann/1.9.1/bashbug/stable/build/0ae23ce156a999016ff3644328f7150befab40a6
flann/1.9.1@bashbug/stable: WARN: Trying to remove corrupted source folder
flann/1.9.1@bashbug/stable: WARN: This can take a while for big packages
flann/1.9.1@bashbug/stable: Configuring sources in /home/docker/.conan/data/flann/1.9.1/bashbug/stable/source

hello, how to make when I want to use ndk-r16 to do it? If it needs armeabi-v7a.

Hi,

Thanks a lot fo good guide.
I success build pcl using Ubuntu 16.04 and Android NDK 12b.
But when I add all libs and heades files to Android Studio can see error:

Error:fatal error: 'Eigen/Core' file not found

Looks like that builded PCL libs cannot find Eigen lib. Your approach not building Eigen library, but only referring to it.

Could you please suggest me how I can run this on Android Studio.

Hi

Cound you add an example to import the libraries into my project please?

Thanks!

Cross-build from 'Linux:x86_64' to 'Android:armv8' Installing (downloading, building) binaries... android-toolchain/r25b@bashbug/stable: Already installed! lz4/1.9.2@bashbug/stable: Applying build-requirement: android-toolchain/r25b@bashbug/stable lz4/1.9.2@bashbug/stable: WARN: Build folder is dirty, removing it: /root/.conan/data/lz4/1.9.2/bashbug/stable/build/278fbbfd93b48508f4bb6ebf2f52cc80110f5b26 lz4/1.9.2@bashbug/stable: Copying sources to build folder lz4/1.9.2@bashbug/stable: Building your package in /root/.conan/data/lz4/1.9.2/bashbug/stable/build/278fbbfd93b48508f4bb6ebf2f52cc80110f5b26 lz4/1.9.2@bashbug/stable: Generator txt created conanbuildinfo.txt lz4/1.9.2@bashbug/stable: Aggregating env generators lz4/1.9.2@bashbug/stable: Calling build() -- The C compiler identification is unknown -- The CXX compiler identification is unknown -- Detecting C compiler ABI info -- Detecting C compiler ABI info - failed -- Check for working C compiler: /root/.conan/data/android-toolchain/r25b/bashbug/stable/package/be241241e9d4718e5bab4eb33935bbb69606bb0c/android-ndk-r25b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -- Check for working C compiler: /root/.conan/data/android-toolchain/r25b/bashbug/stable/package/be241241e9d4718e5bab4eb33935bbb69606bb0c/android-ndk-r25b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang - broken CMake Error at /usr/share/cmake-3.22/Modules/CMakeTestCCompiler.cmake:69 (message): The C compiler

"/root/.conan/data/android-toolchain/r25b/bashbug/stable/package/be241241e9d4718e5bab4eb33935bbb69606bb0c/android-ndk-r25b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang"
is not able to compile a simple test program.

It fails with the following output:

Change Dir: /root/.conan/data/lz4/1.9.2/bashbug/stable/build/278fbbfd93b48508f4bb6ebf2f52cc80110f5b26/armv8/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/gmake -f Makefile cmTC_19db5/fast && /usr/bin/gmake -f CMakeFiles/cmTC_19db5.dir/build.make CMakeFiles/cmTC_19db5.dir/build
gmake[1]: Entering directory '/root/.conan/data/lz4/1.9.2/bashbug/stable/build/278fbbfd93b48508f4bb6ebf2f52cc80110f5b26/armv8/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_19db5.dir/testCCompiler.c.o
/root/.conan/data/android-toolchain/r25b/bashbug/stable/package/be241241e9d4718e5bab4eb33935bbb69606bb0c/android-ndk-r25b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -o CMakeFiles/cmTC_19db5.dir/testCCompiler.c.o -c /root/.conan/data/lz4/1.9.2/bashbug/stable/build/278fbbfd93b48508f4bb6ebf2f52cc80110f5b26/armv8/CMakeFiles/CMakeTmp/testCCompiler.c
clang: error: no input files
gmake[1]: *** [CMakeFiles/cmTC_19db5.dir/build.make:78: CMakeFiles/cmTC_19db5.dir/testCCompiler.c.o] Error 1
gmake[1]: Leaving directory '/root/.conan/data/lz4/1.9.2/bashbug/stable/build/278fbbfd93b48508f4bb6ebf2f52cc80110f5b26/armv8/CMakeFiles/CMakeTmp'
gmake: *** [Makefile:127: cmTC_19db5/fast] Error 2
CMake will not be able to correctly generate this project. Call Stack (most recent call first): CMakeLists.txt:2 (project)

I have compiled arm64-v8a sucessfully, but when I make the project, there is an error:

C/C++ debug|arm64-v8a : CMake Error at /home/ming/AndroidStudioProjects/pcl-for-android/example-app/app/.cxx/cmake/debug/arm64-v8a/conanbuildinfo.cmake:1065 (message):
Detected a mismatch for the compiler version between your conan profile
settings and CMake:
Compiler version specified in your conan profile: 8

Compiler version detected in CMake: 9.0

Please check your conan profile settings (conan profile show
[default|your_profile_name])

How should I do? Thanks.

I successfully built the PCL for Android arm64-v8a libraries, but then got an error attempting
to build the example app. Appears to be an issue with Gradle configuration.

It is a bit confusing as the message

Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.

conflicts with the fact that Gradle 5.1.1 was apparently downloaded / used

Also I found the message:

Detected a mismatch for the compiler version between your conan profile
settings and CMake:

Compiler version specified in your conan profile: 8

Compiler version detected in CMake: 9.0

So then I changed ~/.conan/profiles/arm64-v8a to specify
compiler.version=9
instead of
compiler.version=8

and tried the build again

$ cd ~/Downloads/pcl-for-android/example-app
$ ./gradlew clean assemble
This time it seemed to get stuck at 26% EXECUTING of the :app:generateJsonModelDebug
step for a long time

Any suggestions ?

###########################################

ANDROID-TOOLCHAIN setup...

###########################################

usage: conan create [-h] [-f FORMAT] [-v [V]] [--name NAME]
[--version VERSION] [--user USER] [--channel CHANNEL]
[-l LOCKFILE] [--lockfile-partial]
[--lockfile-out LOCKFILE_OUT] [--lockfile-packages]
[--lockfile-clean] [-b BUILD] [-r REMOTE | -nr] [-u]
[-o OPTIONS_HOST] [-o:b OPTIONS_BUILD] [-o:h OPTIONS_HOST]
[-pr PROFILE_HOST] [-pr:b PROFILE_BUILD]
[-pr:h PROFILE_HOST] [-s SETTINGS_HOST]
[-s:b SETTINGS_BUILD] [-s:h SETTINGS_HOST] [-c CONF_HOST]
[-c:b CONF_BUILD] [-c:h CONF_HOST] [--build-require]
[-tf TEST_FOLDER]
path
conan create: error: unrecognized arguments: bashbug/stable
ERROR: Exiting with code: 2

Hi, I cannot get to build the PCL for android for an ABI different than armeabi-v7a.
I have tried to change the first line in the pcl-build-for-android.sh script to needed ABI, but no luck.. Any help?

Hello !
I followed every steps and during the "./pcl-build-for-android.sh", the compiler tells that I have not any NDK. But when I do a echo $ANDROID_NDK or a printenv ANDROID_NDK the good path is printed.

I have the r10e Android NDK, maybe it is not compatible ?
Can someone help me ?

I changed the examples/CMakeLists.txt and turn on only common example building, with this:

set(SUBSYS_DEPS common)
set(build TRUE)
PCL_SUBSYS_OPTION(build ${SUBSYS_NAME} ${SUBSYS_DESC} ON)
PCL_SUBSYS_DEPEND(build ${SUBSYS_NAME} DEPS ${SUBSYS_DEPS})

but the ninja find libboost_filesystem.a which is exactly libboost_filesystem-clang-mt-a32-1_71.a

-- Build files have been written to: C:/Users/username/.conan/data/pcl/1.9.1/bashbug/stable/build/edf8fc3f2f92012e3ef85012b21cfa3182a52d47/armv7
ninja: error: 'C:/Users/username/.conan/data/boost/1.71.0/bashbug/stable/package/4e65a98fd5c197b6539ce5c3062c84123c059f0c/lib/libboost_filesystem.a', needed by 'bin/pcl_example_copy_point_cloud', missing and no known rule to make it

how to tell ninja the full file name of boost_filesystem?

Hi,
I add pcl removing outliers such as StatisticalOutlierRemoval filter in native-lib.cpp using example-app project with its default CMakeLists.
When building the project using Android Studio, it always throws errors like:
/opt/conan/data/pcl/1.9.1/bashbug/stable/build/1dbc8a6a865a8fad699417711b0b0b490d4d2d18/pcl/search/include/pcl/search/impl/kdtree.hpp:48: undefined reference to `pcl::KdTreeFLANN<pcl::InterestPoint, flann::L2_Simple >::KdTreeFLANN(bool)'
I don't know how to sovle this, so here ask for your help.

how to enable Qhull and VTK？？
I modify qhull and VTK as ON:
cmake.definitions["WITH_QHULL"] = "ON"
cmake.definitions["WITH_VTK"] = "ON"

but nothing happen. I cannot get the result that i wish.
how to do??

Hi,I got this error:
ERROR: flann/1.9.1@bashbug/stable: Error in source() method, line 48
git.clone("https://github.com/mariusmuja/flann.git", self.version)
CalledProcessError: Command 'git clone "https://github.com/mariusmuja/flann.git" . --branch 1.9.1 ' returned non-zero exit status 128.
and I can use Git normally.
I don't know how to solve it.I need your help.

Hello,

I have compilation error when running ./pcl-build-for-android.sh arm64-v8a. For armeabi-v7a and x86_64 it's working well.

The error occurs when compiling boost. You can see a part of the error log below. This might be related to boostorg/context#5 but I don't think because it's fixed since a while.

I am using the exact versions of boost and conan that are described in Readme. I am running this on MacOS.

The error log :

warning: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: warning for library: bin.v2/libs/container/build/clng-drwn-andrd/rls/lnk-sttc/trgt-os-andrd/thrd-mlt/vsblt-hdn/libboost_container.a the table of contents is empty (no object file members in the library define global symbols)
common.copy /Users/thomas/.conan/data/boost/1.70.0/bashbug/stable/build/837b8b15700337e070bce7d978d7be2a5fc61d31/boost_1_70_0/armv8/lib/libboost_container.a
clang-darwin.compile.asm bin.v2/libs/context/build/clng-drwn-andrd/rls/abi-apcs/lnk-sttc/trgt-os-andrd/thrd-mlt/vsblt-hdn/asm/make_arm64_aapcs_macho_gas.o
libs/context/src/asm/make_arm64_aapcs_macho_gas.S:59:21: error: unexpected token in argument list
    ; shift address in x0 (allocated stack) to lower 16 byte boundary
                    ^
libs/context/src/asm/make_arm64_aapcs_macho_gas.S:62:21: error: unexpected token in argument list
    ; reserve space for context-data on context-stack
                    ^
libs/context/src/asm/make_arm64_aapcs_macho_gas.S:65:17: error: unexpected token in argument list
    ; third arg of make_fcontext() == address of context-function
                ^
libs/context/src/asm/make_arm64_aapcs_macho_gas.S:66:21: error: unexpected token in argument list
    ; store address as a PC to jump in
                    ^
libs/context/src/asm/make_arm64_aapcs_macho_gas.S:69:19: error: unexpected token in argument list
    ; compute abs address of label finish
                  ^
libs/context/src/asm/make_arm64_aapcs_macho_gas.S:70:7: error: unexpected token at start of statement
    ; 0x0c = 3 instructions * size (4) before label 'finish'
      ^
libs/context/src/asm/make_arm64_aapcs_macho_gas.S:72:28: error: unexpected token in argument list
    ; TODO: Numeric offset since llvm still does not support labels in ADR. Fix:
                           ^
libs/context/src/asm/make_arm64_aapcs_macho_gas.S:76:20: error: unexpected token in argument list
    ; save address of finish as return-address for context-function
                   ^
libs/context/src/asm/make_arm64_aapcs_macho_gas.S:77:15: error: unexpected token in argument list
    ; will be entered after context-function returns (LR register)
              ^
libs/context/src/asm/make_arm64_aapcs_macho_gas.S:80:29: error: unexpected token in argument list
    ret lr ; return pointer to context-data (x0)
                            ^
libs/context/src/asm/make_arm64_aapcs_macho_gas.S:83:17: error: unexpected token in argument list
    ; exit code is zero
                ^
libs/context/src/asm/make_arm64_aapcs_macho_gas.S:85:7: error: unrecognized instruction mnemonic, did you mean: ext, extr?
    ; exit application

Thank you for your work