Wheel Joint 2D

Hi,

I am not seeing the lines for the Wheel Joint 2D. It says the following error “Cannot create the 2D joint on ‘Truck Body’ because it connects to itself.” But the Wheel Joint 2D is connect to the truck and then each one has the connected Rigid Body as one of the two tires. I feel like I am missing something basic here.

To anyone coming here for answers. I found the Gizmo button up top that wasn’t selected making it invisible. Feels like it should have been enabled to start with but at least the problem is solved.