Advanced troubleshooting of build 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: clean 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.