I just created all new dev and deployment certs and I\'m getting this weird error when I try to validate the application in the archive manager:
error: Codesign          
        
Are you sure you signed this with your Distribution profile and not your Developer profile? I think XCode 4.2 will give an error if you're trying to share an archive code signed with the wrong type of profile.
Some (old) information in this thread: http://forums.macrumors.com/showthread.php?t=659607