Exception thrown while initializing controller 'diff_drive_controller'.
When i add diff_drive_controller to my four wheels gazebo car models i receive this error. How can i fix that?
*[ERROR] [1646844638.668086226, 0.501000000]: Exception thrown while initializing controller 'diff_drive_controller'. Could not find resource 'Rev15' in 'hardware_interface::VelocityJointInterface'. *