source~/。bashrc出错
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最后一步source ~/.bashrc出错：
bash: /opt/ros/melodic/_setup_util.py: /usr/bin/python: bad interpreter: No such file or directory
Failed to run '"/opt/ros/melodic/_setup_util.py" ': return code 126
bash: /home/neousys/catkin_ws/devel/setup.bash: No such file or directory
bash: /opt/ros/melodic/_setup_util.py: /usr/bin/python: bad interpreter: No such file or directory
Failed to run '"/opt/ros/melodic/_setup_util.py" ': return code 126
bash: /opt/ros/melodic/_setup_util.py: /usr/bin/python: bad interpreter: No such file or directory
Failed to run '"/opt/ros/melodic/_setup_util.py" ': return code 126