error while rtabmapviz tries to load librtabmap_core.so

[aosewski]

Hi! This is probably a bug introduced by new rtabmap release (13.0). When I try to launch rtabmapviz node I got following error:

error while loading shared libraries: librtabmap_core.so.0.12: cannot open shared object file: No such file or directory

which causes rtabmapviz node to die.

[matlabbe]

Did you update/rebuild rtabmap_ros too? You may also need to remove the CMakeCache.txt in your catkin build folder before doing catkin_make to make sure cmake links on 0.13 and not 0.12 libraries.

[aosewski]

I updated rtabmap_ros too. Moreover I've carefully removed all files and directories from previous rtabmap versions. Next I've rebuilded rtabmap, installed it under /usr/local/ directory; removed build and devel folders from my catkin workspace and rebuilded it entirely. However now I'm facing following warning from CMake:

WITH rviz CMake Warning at rtabmap_ros/CMakeLists.txt:318 (MESSAGE): Found RTAB-Map built without its GUI library. Node rtabmapviz will not be built!

while trying to build my catkin workspace.

Furthermore I've noticed that I need to append rtabmap installed libraries directory to environment variable LD_LIBRARY_PATH in order to run standalone app, since without this I got errors that rtabmap can't load librtabmap_gui.so.0.13 shared library.

[matlabbe]

For the warning telling rtabmapviz will be not built, that would be fixed by https://github.com/introlab/rtabmap/commit/5646751f885a716820eb1a96f7e8651b1fa5874b (bug introduced by this https://github.com/introlab/rtabmap/commit/29ff2c5d0a938e683834eb42cb64438cb57c0016 on June 15)

For LD_LIBRARY_PATH, there is a comment on this page: https://github.com/introlab/rtabmap_ros#ros-distribution

However, I think running "sudo ldconfig" or closing/reopen terminal solve this problem too.

cheers, Mathieu

[aosewski]

Thanks a lot! Now it all works well! ;)

cheers, Adam