iTunes says iPhone backup is corrupted, but I can't locate corrupt backup to delete it.
When I sync my wife's iphone 5 with iTunes I receive a message this message, "iTunes could not backup the iPhone because the backup was corrupt or not compatible with the iPhone. Delete the backup for this iPhone, then try again." When I go to iTunes--->Preferences--->Devices there is no backup for this particluar phone listed. How do I locate the corrupt backup so I can delete and backup this phone?
iMovie '11, Mac OS X (10.7.2)