Unable to build the ros examples! about orb_slam2 HOT 17 CLOSED

Replace PATH by the folder where you cloned ORB_SLAM2:
export ROS_PACKAGE_PATH=${ROS_PACKAGE_PATH}:PATH/ORB_SLAM2/Examples/ROS

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It's working! I wasn't sourcing it!

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Oh I think I know what the issue is. I forgot to source it. My bad. Let me check and get back :) Thanks!

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@zsy372901
I already did that. This is what I added to my bashrc file:
export ROS_PACKAGE_PATH=${ROS_PACKAGE_PATH}:/home/ankit/orb_slam_catkin_ws/ORB_SLAM2/Examples/ROS

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congratulations!

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Hello, @ankitvora7 @zsy372901 @raulmur

I have got the error of rosbuilt_init while operating cmake .. -DROS_BUILD_TYPE=Release in /Examples/ROS/ORB_SLAM2/build. Here my ROS path in .bashrc file:

echo "source /opt/ros/indigo/setup.bash" >> ~/.bashrc source ~/.bashrc

export Examples/ROS/ORB_SLAM2=${Examples/ROS/ORB_SLAM2}:/home/ramtin/ORB_SLAM2/Examples/ROS

source /opt/ros/indigo/setup.bash

--------------------------------------------------------------------Here is the Error :

ramtin@ramtin:/ORB_SLAM2/Examples/ROS/ORB_SLAM2$ mkdir build ramtin@ramtin:/ORB_SLAM2/Examples/ROS/ORB_SLAM2$ cd build ramtin@ramtin:~/ORB_SLAM2/Examples/ROS/ORB_SLAM2/build$ cmake .. -DROS_BUILD_TYPE=Release -- The C compiler identification is GNU 4.8.5 -- The CXX compiler identification is GNU 4.8.5 -- Check for working C compiler: /usr/bin/cc -- Check for working C compiler: /usr/bin/cc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done CMake Error at CMakeLists.txt:4 (rosbuild_init): Unknown CMake command "rosbuild_init".

-- Configuring incomplete, errors occurred! See also "/home/ramtin/ORB_SLAM2/Examples/ROS/ORB_SLAM2/build/CMakeFiles/CMakeOutput.log". ramtin@ramtin:~/ORB_SLAM2/Examples/ROS/ORB_SLAM2/build$ make -j make: * No targets specified and no makefile found. Stop.

Do you know how to solve the problem ?

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Hi ankitvora7,

I'm having the same problem here; what was it you weren't sourcing?

Thanks!

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Source the catkin workspace where you've kept your orb_slam packages. So in my case, I sourced the setup.bash in the devel folder of "orb_slam_catkin_ws". See if that works!

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You know I'd swear I sourced it. I guess 3am might not be the best time to try and link everything :D But yeah, that worked, brought up an easy to fix new bug, and now I'm up and running! Thanks for your quick reply.

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Awesome :)

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@ramtinkr
It seems that ros didn't use a workspace. I've met this problem about rosbuilt_init error.
http://wiki.ros.org/catkin/Tutorials/using_a_workspace
May it help you.
echo $ROS_PACKAGE_PATH
" ROS_PACKAGE_PATH=/opt/ros/indigo/share:/opt/ros/indigo/stacks:PATH_TO_ORB-SLAM2/ORB_SLAM2/Examples/ROS "

Hope it can solve the problem.

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@ankitvora7
I sourced but it doesn't work. What is wrong?
Its my .bashrc:
export ROS_PACKAGE_PATH=${ROS_PACKAGE_PATH}:/home/arash/Desktop/ORB_SLAM2/Examples/ROS
source /opt/ros/kinetic/setup.bash

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@Arashm12 source the setup.bash in ROS file, for example , it's my source:
source /home/z/ORB_SLAM2/Examples/ROS/ORB_SLAM2/build/devel/setup.bash
good luck!

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Hello, I am getting the same error.
When I attempt to run build_ros.sh, it fails at cmake .. -DROS_BUILD_TYPE=Release

I added this line to .bashrc as instructed
export ROS_PACKAGE_PATH=${ROS_PACKAGE_PATH}:/home/h/software/ORB_SLAM2/Examples/ROS

I noticed the lines about sourcing, and added this line to .bashrc
source /home/h/ORB_SLAM2/Examples/ROS/ORB_SLAM2/build/devel/setup.bash

However, I still get the same error, and when I checked, the devel folder does not exist.

Can anyone help?

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@ankitvora7

It's working! I wasn't sourcing it!

If you don't mind, what do you mean by sourcing it, and how can I do this?
The documentation made no reference to a catkin workspace, so I didn't use one.
Thanks.

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Solved the problem. I followed a guide for installing ROS that may have been a little out of date instead of the official documentation, so I had a few missed dependencies.
If it helps, it was this line:
sudo apt-get install python-rosinstall python-rosinstall-generator python-wstool build-essential
from here:
http://wiki.ros.org/melodic/Installation/Ubuntu

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Oh, creo que sé cuál es el problema. Olvidé buscarlo. Culpa mía. Déjame comprobar y volver :) ¡Gracias!
Como lo buscaste?

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