CMake Error at /opt/ros/noetic/share/catkin/cmake/catkin_package.cmake

[ZWH55]

CMake Error at /opt/ros/noetic/share/catkin/cmake/catkin_package.cmake:183 (message):
catkin_package() CATKIN_DEPENDS on 'decomp_util', which has been found in
'/home/zwh/plan/MPCC/TMPCPlanner/devel/share/decomp_util/cmake/decomp_utilConfig.cmake',
but it is not a catkin package

[oscardegroot]

Hi, I cannot reproduce the issue (I tried a fresh install to check, but it works for me). I think the issue is that decomp_util did not get compiled somehow, did you use the provided tasks to build?

I think running catkin build decomp_util separately will fix the problem. Please let me know.

[Yihappyy]

Hello, I have also encountered the same issue. I have already run catkin build decomp_util in advance according to the README, but when I generate the solver for mpc_planner_rosnavigation and then compile the workspace, this error will occur.
Looking forward to your reply.

[oscardegroot]

How are you building the planner, are you using mpc_planner_ws?

If not, is the name of the package DecompUtil instead of decomp_util? In that case it may somehow be related to the name of the folder and it would be best to rename to decomp_util.

If the error remains, please let me know how you are building so that I can try to reproduce it.

[Yihappyy]

I have renamed DecompUtil to decomp_util, but the error still persists.
I followed the prompt in the README, completed the build, and ran roslaunch mpc_planner_jackalsimulator ros1_jackalsimulator. launch successfully. However, when I wanted to use mpc_planner_rosnavigation, I first ran catkin build decomp_util. Then, python mpc_planner_rosnavigation/scripts/generate_rosnavigation_stolver.py was run successfully in Conda. When I tried to compile the workspace again, the above error occurred. My workspace is named catkin_ws_t-mpc.