It’s impossible to help if you don’t provide any code
I’m gonna guess that you are following gnome code’s tutorial so just rewatch it I guess?
Or on the slim chance you just happen to be making a doors game right now, I would recommend going to GnomeCode’s channel (as he is making a full tutorial on doors)
This means that ‘prevRoom’ doesn’t exist. This is because you aren’t returning newRoom at the end of the room.Generate script, making the new ‘prevRoom’ equal to nil. So just add this at the end of the room.Generate function: