新手一枚,如题

tianbot@ros2go:~$ roslaunch tianbot_mini bringup.launch
... logging to /home/tianbot/.ros/log/3aeee1b2-be19-11eb-9114-04d3b00bb63e/roslaunch-ros2go-4146.log
Checking log directory for disk usage. This may take a while.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://ros2go:38613/

SUMMARY
========

PARAMETERS
 * /robot_description: <?xml version="1....
 * /rosdistro: melodic
 * /rosversion: 1.14.10
 * /use_gui: False

NODES
  /
    joint_state_publisher (joint_state_publisher/joint_state_publisher)
    robot_state_publisher (robot_state_publisher/robot_state_publisher)
    tbm_base_link_to_urdf_base_link (tf/static_transform_publisher)
    tianbot_mini (rosserial_server/socket_node)

ROS_MASTER_URI=http://localhost:11311

process[tianbot_mini-1]: started with pid [4172]
process[tbm_base_link_to_urdf_base_link-2]: started with pid [4178]
process[joint_state_publisher-3]: started with pid [4179]
process[robot_state_publisher-4]: started with pid [4180]
[ WARN] [1622030287.104405588]: The root link base_link has an inertia specified in the URDF, but KDL does not support a root link with an inertia.  As a workaround, you can add an extra dummy link to your URDF.
Exception AttributeError: "'module' object has no attribute 'argv'" in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
[ WARN] [1622030287.292021658]: Unable to look up message: Unable to import message module tf.
[ WARN] [1622030287.292069780]: Advertising on topic [/tf] with an empty message definition.  Some tools (e.g. rosbag) may not work correctly.
[tianbot_mini-1] process has died [pid 4172, exit code -11, cmd /home/tianbot/tianbot_mini_ws/devel/lib/rosserial_server/socket_node __name:=tianbot_mini __log:=/home/tianbot/.ros/log/3aeee1b2-be19-11eb-9114-04d3b00bb63e/tianbot_mini-1.log].
log file: /home/tianbot/.ros/log/3aeee1b2-be19-11eb-9114-04d3b00bb63e/tianbot_mini-1*.log

用rostopic list查看后

tianbot@ros2go:~$ rostopic list
/joint_states
/rosout
/rosout_agg
/tf
/tf_static