No response while trying ROS 1 Quickstart Guide(Step 8)

[Piskoooh]

Hello,
I am trying ROS 1 Quickstart Guide in locobot documentation.
Thanks for the beginner friendly documentation!

My question is about step 8. I executed the following code but the robot did not respond. I don't see any particular error on terminal and am stuck. Are there any possible issues?

rostopic pub --once /locobot/cmd_vel geometry_msgs/Twist '{linear: {x: 0.5, y: 0.0, z: 0.0}, angular: {x: 0.0, y: 0.0, z: 0.3}}'

I have confirmed that the control with joystick works fine.
roslaunch interbotix_xslocobot_joy xslocobot_joy.launch robot_model:=locobot_wx200

Also, I tried 'Create® 3 base not responding to commands, can't see topics or webserver from LoCoBot computer (ROS 1 or ROS 2)' in troubleshooting but could not solve the problem.

The execution environment is as follows:
locobot OS: Ubuntu 20.04.6 LTS
ROS: Noetic 1.16
Create3 firmware version: G.4.5
remote pc OS: Ubuntu 20.04.6 LTS

Any insights into this issue would be great,
Thanks!

[lukeschmitt-tr]

The documentation has the wrong namespace. It should be the command below:

rostopic pub --once /mobile_base/cmd_vel geometry_msgs/Twist '{linear: {x: 0.5, y: 0.0, z: 0.0}, angular: {x: 0.0, y: 0.0, z: 0.3}}'

The docs have been updated accordingly.

[Piskoooh]

Thanks for quick response!!
Able to confirm that it works fine.