用一键安装指令没有出现问题，Ubuntu是22.04的装的ros2 humble，输入roscore出现下列问题打不开

[2747283266]

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)

[小鱼]

@2747283266 ros2没有roscore

[2747283266]

@小鱼 那应该怎么样操作才能使用这个呢？

[3286029015]

@2747283266 需要安装ros才行啊

[2747283266]

@3286029015 好的谢谢

[372365381]

@2747283266 ROS2去中心化设计，没有core了