I had problems while "archiving" my app. I think there are invalid profiles because of iPhone Update to 5.1 and XCode update to 4.2.2.
I\'ve taken now more
Make sure the bundle id in your .plist file in XCode is the same as the bundle id in itunesconnect, if it's off, it won't be able to match the archive to the profile on itunesconnect when validating/distributing.