Try this to see if Corona is picking up the wrong Xcode version.
Build an iOS project for Xcode Simulator. When the iOS Simulator opens, it should show “iOS 6.1 (10B141)” at the top of the window. This is the released version.
It’s possible to have the released version of Xcode on your machine and able to do a native Xcode build correctly but Corona could be picking up the older build if it wasn’t removed correctly.
My system is building correctly but I never had the beta version of Xcode installed so I’m not sure if we have an issue with how Corona is picking up Xcode tools or not.
I believe the error message is posted by Apple’s Validation tool and I’m wondering if it is not getting updated from the beta version and blocks any distribution build.
UPDATE:
You an also check the Terminal when doing a Corona build. This is what my console says:
[DEBUG] SDK Root: path=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.1.sdk version=6.1 name=Simulator - iOS 6.1
[DEBUG] using device family unspecified
Doing a non-simulator build returns this:
Corona Simulator[42987:707] validationTool: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/Validation [import]uid: 7559 topic_id: 35512 reply_id: 141221[/import]