because of my mistake, i deleted catkin_ws and other files, how can i format my ide???
Thank you for contacting us and welcome to the Community.
By “format” I think you mean you want to reset your workspace…to do that just change to another course and come back to the current one.
If you have deleted any important files, we might be able to recover a previous version for you. Please let us know if this is the case (you need to tell us the specific course).