Advanced: Help me troubleshoot weird build problems

For advanced users who are trying to tix weird problems

Notes

You really need to know what you are doing when you are dealing at this level.

Radical Cleanup

• It turns out that it is safe to delete the build and devel subdirectories in ROS.

• Sometimes this helps:

cd ~/catkin_ws
rm -rf build/ devel/
catkin_make
source devel/setup.bash

Another way

• First: lean your build by running "catkin_make clean" in the root of your workspace.

• Second: remake your project with "catkin_make"

• Third: re-source the devel/setup.bash in your workspace.