XCode4.5: At least one of the following architectures(s) must be present: armv6

http://stackoverflow.com/questions/12567539/unable-to-validate-application-for-ios-app-store-armv6-architecture-missing

Upgrade XCode to 4.5, using iOS 6.0, architecture: armv6 armv7, but when distribute to appstore, it raise error as above. Did as suggested and resolved. 

XCode support 4.3 at least.