参考:
https://www.guyuehome.com/28168
问题解决:
https://answers.ros.org/question/239168/cannot-display-the-urdf-model-in-rviz-launch-file/
安装确实包:
sudo apt install ros-melodic-joint-state-publisher-gui
修改display.launch 文件
catkin_make 包时报错缺失 src文件添加即可
缺失模型描述文件,手动添加即可