xcode build failed no explanation

Question

My project has weirdly started failing with no error messages. Ive tried cleaning the project and this had no effect. I know this is all a bit vague but i havent done anything to revert or undo. its just randomly started to happen. Can anyone suggest a way of debugging what the problem is?

Phil

Answer 1

Have you tried clearing the derived data (Organizer->Projects / cmd + shift + 2) and then cleaning (cmd+shift+K)?

Maybe closing xCode and rebooting?

I've had it a few times and this worked for me sometimes.