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Hi, I struggled with this for a few days. The actions_quiz would build incorrectly, the /include files would not be generated and the actions msg can not be used hence import error. With many iterations of the CMakeLists and package.xml it would not work. Then I tried to grade the quiz and it built correctly and with my surprise I passed. That's when I realized this is a bug. I am trying to recreate the issue.
This was not a bug. My take is that the subsequent changes you made to the package, which fixed the initial issue, did not take effect after the initial catkin_make.
Every time you change your package, you should remove the build and devel directories before running catkin_make again.
cd ~/catkin_ws
# remove build and devel directories
rm -rf build/ devel/
catkin_make
# source the workspace after compiling
# This should be run on every terminal
# where the package will be accessed
source devel/setup.bash
Gradebot runs those commands before grading your package, so that explains why it worked when and after you submitted it!
Thanks for the tips. @bayodesegun
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