I submitted the quiz twice and the correction system said the actions_quiz pkg did not compile successfully, but in the local machine it worked fine; the pkg was built by catkin build.
use catkin_make instead, I suppose it would work
rm -rf build/ devel/ catkin_make
Thanks for the reply~
I used catkin_make, it failed but used **catkin build ** fine. What is the reason?
Here is the error I got.
from actions_quiz.msg import CustomActionMsgAction,CustomActionMsgFeedback,CustomActionMsgResult
ImportError: cannot import name ‘CustomActionMsgAction’ from ‘actions_quiz.msg’ (unknown location)
The problem was solved now.