出现的问题 在使用rqt工具时,报错如图所示: [ERROR] [1627898425.729156095]: Skipped loading plugin with error: XML Document '/opt/ros/melodic/share/rqt_virtual_joy/plugin.xml' has no Root Element. This likely means t
1. 出现错误: 运行 ros2 run rivz2 rivz2 ,报错如下 : No protocol specifiedqt.qpa.xcb: could not connect to display :1qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found
问题如下: Could not import "pyqt" bindings of qt_gui_cpp library - so C++ plugins will not be available: ModuleNotFoundError: No module named 'libqt_gui_cpp_sip'解决方案:
代码包下载链接:https://github.com/yongzcong/communication_learn.git 内容:假设发布的数据包括三个值 x , y , z x,y,z x,y,z,首先定义msg数据格式;其次新建发布节点publisher,发布msg格式的数据;然后新建节点listener,订阅发布消息;最后,在rqt_plot中订阅发布的数据并可视化显示。 1、msg格式数据