No link elements found in urdf file
`[ERROR] [1583184299.047995028]: No link elements found in urdf file
[robot_state_publisher-2] process has died [pid 5282, exit code 255, cmd /opt/ros/kinetic/lib/robot_state_publisher/state_publisher name:=robot_state_publisher log:=/home/moh/.ros/log/44847174-5ccc-11ea-99f3-b8ca3a911d19/robot_state_publisher-2.log].
log file: /home/moh/.ros/log/44847174-5ccc-11ea-99f3-b8ca3a911d19/robot_state_publisher-2*.log
I'm using ros kinetic with gazebo 7.16
No link elements found in urdf file `[ERROR] [1583184299.047995028]: No link elements found in urdf file [robot_state_publisher-2] process has died [pid 5282, exit code 255, cmd /opt/ros/kinetic/lib/robot_state_publisher/state_publisher name:=robot_state_publisher log:=/home/moh/.ros/log/44847174-5ccc-11ea-99f3-b8ca3a911d19/robot_state_publisher-2.log]. log file: /home/moh/.ros/log/44847174-5ccc-11ea-99f3-b8ca3a911d19/robot_state_publisher-2*.log
`