Please help, I've spent 4 hours deleting and re-creating keys and provisioning profiles, trying to get my iOS 5 app to build in xcode for deployment to ipads. I'm using in-house distribution. A few months ago I went through all the same hell but finally got it working. Trying everything I tried before, it just doesn't work now. I'm getting this error in xcode: "Code Sign error: The identity 'iPhone Developer: xxx (zzz)' doesn't match any valid certificate/private key pair in the default keychain".
Everything appears correct in Keychain Access and Xcode. In Xcode it shows my Provisioning Profile as Valid.
I have gone through all the steps (multiple times) here: iPhone app signing: A valid signing identity matching this profile could not be found in your keychain
I have deleted all keys and profiles, created all new, created new App IDs (I have a ton of these now that I can't delete). I've been through numerous online articles and they all say to try the same thing: delete, re-create, and reinstall keys and profiles. That's just not working for me.
Please help, I'm at wits end.