[joint_state_publisher-5] process has died [pid 15383

ros gazebo 启动urdf时报错 [joint_state_publisher-5] process has died

编辑好urdf后，launch启动时，报错误：

[joint_state_publisher-5] process has died [pid 15383, exit code 1, cmd /opt/ros/kinetic/lib/joint_state_publisher/joint_state_publisher

百度了一下，发现说是urdf注释里有中文注释的原因。
将urdf中的中文注释删除掉后，问题解决。
至于为什么中文注释会导致这个问题，以后搞明白了再来完善上。