Hi, I'm ready to start testing my app on the real thing but get 'Code Sign error: The identity 'iPhone Developer' doesn't match any valid, non-expired certificate/private key pair in your keychains' in Xcode. I'm sure this is common and easy to fix, but haven't found anything that makes sense yet! The iPad is running iOS6 and Xcode 4.5 Do I need to have a common key on both devices? Or something else? I'm an Apple newb, so all this is a bit new to me Cheers, Martin.