一、报错内容: [ERROR] [1591260841.508422294]: Skipped loading plugin with error: XML Document '/opt/ros/melodic/share/rqt_virtual_joy/plugin.xml' has no Root Element. This likely means the XML is malformed or missing.. RosPluginProvider._parse_plugin_xml() plugin file "/opt/ros/melodic/sha...
首先，rosrun rqt_graph rqt_graph是正确的命令，其中rqt_graph是 ROS 图形化工具包中的一个可视化工具...