Ros noetic runninh camera_checker shows "No module named rospkg"
I wanna try the camera checker ,but the terminal shows No module named rospkg. I have tried the both python path in the bashrc as following "export PYTHONPATH=$PYTHON:/opt/ros/noetic/lib/python3/dist-packages alias python=python3 export PYTHONPATH=$PYTHONPATH:/usr/lib/python2.7/dist-packages " But it doesn't work.