解决 No link elements found in urdf file问题

问题描述：

[ERROR] [1592608696.488471533]: No link elements found in urdf file
[robot_state_publisher-3] process has died [pid 6427, exit code 255, cmd /opt/ros/kinetic/lib/robot_state_publisher/robot_state_publisher __name:=robot_state_publisher __log:=/home/whj/.ros/log/270bf132-b283-11ea-a933-201a06fd4f0c/robot_state_publisher-3.log].
log file: /home/whj/.ros/log/270bf132-b283-11ea-a933-201a06fd4f0c/robot_state_publisher-3*.log

解决：通过检查是我的.xacro文件的函数名和我在另一个文件中调用的函数名不一致，导致的，改过后，编译一下就好了