roscore : 出现:Traceback (most recent call last)
问题 roscore 后出现:
Traceback (most recent call last):File "/opt/ros/kinetic/bin/roscore", line 36, in <module>from rosmaster.master_api import NUM_WORKERSFile "/opt/ros/kinetic/lib/python2.7/dist-packages/rosmaster/__init__.py", line 35, in <module>from .main import rosmaster_mainFile "/opt/ros/kinetic/lib/python2.7/dist-packages/rosmaster/main.py", line 43, in <module>import rosmaster.masterFile "/opt/ros/kinetic/lib/python2.7/dist-packages/rosmaster/master.py", line 47, in <module>import rosmaster.master_apiFile "/opt/ros/kinetic/lib/python2.7/dist-packages/rosmaster/master_api.py", line 72, in <module>from rosmaster.util import xmlrpcapiFile "/opt/ros/kinetic/lib/python2.7/dist-packages/rosmaster/util.py", line 48, in <module>from defusedxml.xmlrpc import monkey_patch
ModuleNotFoundError: No module named 'defusedxml'原因:
- python链接到了3.6
解决办法:
sudo rm -rf /usr/bin/python
sudo ln -s /usr/bin/python2.7 /usr/bin/python
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