运行joint_state_publisher/joint_state_publisher_gui报错
错误如下：
[joint_state_publisher_gui-4] process has died [pid 97153, exit code 1, cmd /opt/ros/melodic/lib/joint_state_publisher_gui/joint_state_publisher_gui __name:=joint_state_publisher_gui __log:=/home/ros/.ros/log/4422783c-0504-11ee-8b5a-000c29b0c758/joint_state_publisher_gui-4.log]. log file: /home/ros/.ros/log/4422783c-0504-11ee-8b5a-000c29b0c758/joint_state_publisher_gui-4*.log
原因：一般均因为urdf內部含有中文字符
解决方案：
1.将urdf文件内部中文字符全部刪除；
2.修改joint_state_publisher和 joint_state_publisher_gui 配置
cd /opt/ros/melodic/lib/joint_state_publisher （joint_state_publisher_gui类似）
sudo gedit joint_state_publisher
修改
在import sys後面加
reload(sys)
sys.setdefaultencoding(“utf-8”)
若仍然報錯修改執行權限：
cd /opt/ros/melodic/lib/joint_state_publisher
chmod 777 joint_state_publisher