built rover skid steer which I connect motor with L298 motor driver, I controlled it manual with no issue , then I install all mavros package and sensor massage but issue is the robot when I try to controll throttle and steering by cmd_vel_unstamped I don’t get any response, I arm and change to guided mode
You posted the exact same question two dayes ago, but you don’t react on the answer of Amilcar Lucas.
HE tell me this question should be in rover 4.4 so i copy it there
He told you to update the software of the rover, NOT to copy the thread.
Also his question about more details of your problem is still unanswered.