6 - Understanding ROS Services - Server

Hi. I’ve followed the solution of exercise 6.2 but when I launch (roslaunch…) the start_bb8…etc. it doesnt work.
The error is:
[start_bb8_move_custom_service_server.launch] is neither a launch file in package [unit_6_exercise] nor is > [unit_6_exercise] a launch file name
> The traceback for the exception was written to the log file
There is a way to restart the environment? Maybe the problem is some process already active.
I’ve tried with the “chmod +x …” thing and also with “source devel/setup.bash” etc. but nothing to do.


Try removing your devel/ and build/ folders, compiling and sourcing your environment again with

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