错误1  [joint_state_publisher-5] process has died [pid 6192, exit code 1, cmd /opt/ros/melodic/lib/joint_state_publisher/joint_state_publisher __name:=joint_state_publisher __log:=/home/yk/.ros/log/cd380bdc-3873-11ec-a2e7-3052cbc20c49/joint_state_publisher-5.log].
log file: /home/yk/.ros/log/cd380bdc-3873-11ec-a2e7-3052cbc20c49/joint_state_publisher-5*.log

错误2[urdf_spawner-4] process has died [pid 6191, exit code 1, cmd /opt/ros/melodic/lib/gazebo_ros/spawn_model -urdf -model robot -param robot_description -z 0.05 __name:=urdf_spawner __log:=/home/yk/.ros/log/cd380bdc-3873-11ec-a2e7-3052cbc20c49/urdf_spawner-4.log].
log file: /home/yk/.ros/log/cd380bdc-3873-11ec-a2e7-3052cbc20c49/urdf_spawner-4*.log