古月老师,你好,我在两台电脑运行roslaunch smartcar_description smartcar_display.rviz.launch都会出现下面报错:
[ERROR] [1599396339.401041890]: No link elements found in urdf file
[robot_state_publisher-3] process has died [pid 15369, exit code -11, cmd /opt/ros/indigo/lib/robot_state_publisher/state_publisher __name:=robot_state_publisher __log:=/home/lingyun/.ros/log/6545bc42-f03d-11ea-b207-94659c4f53c6/robot_state_publisher-3.log].
log file: /home/lingyun/.ros/log/6545bc42-f03d-11ea-b207-94659c4f53c6/robot_state_publisher-3*.log
[ERROR] [1599396339.954519843]: No link elements found in urdf file
请问如何解决呢,但是我在第三台机器上用同样的代码测试就没报错,而且这个报错导致我之前可以运行的launch文件例如roslaunch rbx1_bringup fake_turtlebot.launch也会出现上述的报错,请问是啥原因呢?
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