質問編集履歴
2
質問箇所の修正
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ImportError: cannot import name 'Log' from 'rosgraph_msgs.msg' (unknown location)
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```
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↓
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## 修正（2021/2/22 追記）
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```
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Traceback (most recent call last):
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File "/home/user/ros_catkin_ws/devel/bin/roslaunch", line 15, in <module>
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exec(compile(fh.read(), python_script, 'exec'), context)
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File "/home/user/ros_catkin_ws/src/ros_comm/roslaunch/scripts/roslaunch", line 34, in <module>
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import roslaunch
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File "/home/user/ros_catkin_ws/devel/lib/python3/dist-packages/roslaunch/__init__.py", line 34, in <module>
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exec(__fh.read())
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File "<string>", line 62, in <module>
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File "/home/user/ros_catkin_ws/src/ros_comm/roslaunch/src/roslaunch/scriptapi.py", line 42, in <module>
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import roslaunch.parent
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File "/home/user/ros_catkin_ws/src/ros_comm/roslaunch/src/roslaunch/parent.py", line 54, in <module>
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import roslaunch.server
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File "/home/user/ros_catkin_ws/src/ros_comm/roslaunch/src/roslaunch/server.py", line 83, in <module>
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from rosgraph_msgs.msg import Log
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ImportError: cannot import name 'Log' from 'rosgraph_msgs.msg' (unknown location)
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```
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# 環境
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ubuntu20.04
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ros noetic
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1
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# 質問内容
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2
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現在、ubuntuでROSを使っているのですが、以下のエラーが表示されます。
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3
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4
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解決策を知っている方がいましたら、教えて頂けると幸いです。
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## 端末内のコマンド
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```
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