关于ros调用rosrun rqt_graph rqt_graph报错的解决方法

最新推荐文章于 2024-04-09 17:56:36 发布

coder_sure

最新推荐文章于 2024-04-09 17:56:36 发布

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分类专栏： bug记录文章标签：自动驾驶 qt 人工智能

本文链接：https://blog.youkuaiyun.com/weixin_45042017/article/details/123381844

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这篇博客介绍了在使用ROS Noetic时遇到的报错问题，错误涉及rqt_graph插件加载失败，原因是rosrun rqt_graph与conda环境之间存在冲突。解决方案是先关闭conda环境，通过运行'cond deactivate'命令，然后执行'rosrun rqt_graph rqt_graph'，问题即可得到解决。

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报错信息

CompositePluginProvider.discover() could not discover plugins from provider "<class 'rqt_gui.rospkg_plugin_provider.RospkgPluginProvider'>":
Traceback (most recent call last):
  File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui/composite_plugin_provider.py", line 57, in discover
    plugin_descriptors = plugin_provider.discover(discovery_data)
  File "/opt/ros/noetic/lib/python3/dist-packages/rqt_gui/ros_plugin_provider.py", line 67, in discover
    plugin_descriptors += self._parse_plugin_xml(package_name, plugin_xml)
  File "/opt/ros/noetic/lib/python3/dist-packages/rqt_gui/ros_plugin_provider.py", line 128, in _parse_plugin_xml
    for library_el in root.getiterator('library'):
AttributeError: 'ElementTree' object has no attribute 'getiterator'

CompositePluginProvider.discover() could not discover plugins from provider "<class 'qt_gui.recursive_plugin_provider.RecursivePluginProvider'>":
Traceback (most recent call last):
  File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui/composite_plugin_provider.py", line 57, in discover
    plugin_descriptors = plugin_provider.discover(discovery_data)
  File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui/recursive_plugin_provider.py", line 53, in discover
    plugin_descriptors = self._plugin_provider.discover(discovery_data)
  File "/opt/ros/noetic/lib/python3/dist-packages/rqt_gui/ros_plugin_provider.py", line 67, in discover
    plugin_descriptors += self._parse_plugin_xml(package_name, plugin_xml)
  File "/opt/ros/noetic/lib/python3/dist-packages/rqt_gui/ros_plugin_provider.py", line 128, in _parse_plugin_xml
    for library_el in root.getiterator('library'):
AttributeError: 'ElementTree' object has no attribute 'getiterator'

CompositePluginProvider.discover() could not discover plugins from provider "<class 'qt_gui.recursive_plugin_provider.RecursivePluginProvider'>":
Traceback (most recent call last):
  File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui/composite_plugin_provider.py", line 57, in discover
    plugin_descriptors = plugin_provider.discover(discovery_data)
  File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui/recursive_plugin_provider.py", line 53, in discover
    plugin_descriptors = self._plugin_provider.discover(discovery_data)
  File "/opt/ros/noetic/lib/python3/dist-packages/rqt_gui/ros_plugin_provider.py", line 67, in discover
    plugin_descriptors += self._parse_plugin_xml(package_name, plugin_xml)
  File "/opt/ros/noetic/lib/python3/dist-packages/rqt_gui/ros_plugin_provider.py", line 128, in _parse_plugin_xml
    for library_el in root.getiterator('library'):
AttributeError: 'ElementTree' object has no attribute 'getiterator'

qt_gui_main() found no plugin matching "rqt_graph.ros_graph.RosGraph"
try passing the option "--force-discover"

解决方案

注意看一下自己的终端是否激活了conda，是由于rosrun rqt_graph rqt_graph和conda之间的冲突导致的。
运行：

conda deactivate
rosrun rqt_graph rqt_graph

问题解决！