【求助】按照课程中运行roscore出现如下错误，请教一下各位大佬这是什么原因？网上也没有查到有效的解决办法。

Traceback (most recent call last):
  File "/usr/bin/roscore", line 37, in <module>
    from roslaunch.nodeprocess import DEFAULT_TIMEOUT_SIGINT, DEFAULT_TIMEOUT_SIGTERM
  File "/usr/lib/python3/dist-packages/roslaunch/__init__.py", line 62, in <module>
    from .scriptapi import ROSLaunch
  File "/usr/lib/python3/dist-packages/roslaunch/scriptapi.py", line 42, in <module>
    import roslaunch.parent
  File "/usr/lib/python3/dist-packages/roslaunch/parent.py", line 54, in <module>
    import roslaunch.server
  File "/usr/lib/python3/dist-packages/roslaunch/server.py", line 80, in <module>
    from rosgraph_msgs.msg import Log
ImportError: cannot import name 'Log' from 'rosgraph_msgs.msg' (/opt/ros/humble/local/lib/python3.10/dist-packages/rosgraph_msgs/msg/__init__.py)