While attempting to build an app from a tutorial, I noticed that there are now several question marks - and even a letter A - in my navigator area. I don't know why they're there and I've never seen them before. Could someone please explain why they're there and what they mean? Should I do something to make them disappear? Please help. Thank you!
Would I be able to deactivate this in XCode? I don't even remember activating that at all. 
Thank you Alexis, I appreciate it!