Navigation exercise 3.1

The keyboard_teleop operation is not working. Initially it was working properly but now the robot doesn’t move for any keyboard command. What maybe wrong? Is it possible that I messed with some files?

Have you tried turning it off and on again? :smiley:

…No, seriously, go to a different chapter and back. Sometimes just reloading everything does the trick. Usually have to do that a few times a day.