[Bug] Chapter 2: GPS Navigation

This is an error report.


Screenshot of the error


Error details

CAR not moving with rostopic pub -r5 /catvehicle/cmd_vel_safe geometry_msgs/Twist "{linear:{x: 1.0,y: 0.0,z: 0.0},angular:{x: 0.0,y: 0.0,z: 0.0}}" this command