Xcode Not Immediately Recognizing New Classes (iOS)

Question

I\'ve been working with Xcode for about 5 months now and I just recently ran across a problem when I add a new class. If I add a new class, say for example \"CustomCell\" and I

Answer 1

Close all your projects, open the organizer (from the window menu), make sure the correct project is selected, then opposite 'derived data' click delete.

After that, close xcode, re-open it, open your project, clean it, and everything should work okay.