ITunes Connect error for archive downloaded from Xcode 6.3: contains invalid version of Swift

Question

I built and downloaded my app on itunes connect using the latest version of Xcode 6.3 last night, but was rejected as an "invalid binary". An email from App Review indicated that I am using an invalid or beta version of Swift. I would really appreciate any help or ideas on how to get around this problem.

I originally created the application in the Xcode release (6.1, I think), but then I worked on it in beta 6.3 over the last month or so. Could this be the cause of the "invalid binary" failure, although I created and downloaded the archive in version 6.3? If so, what can I do about it?

I tried to delete the derived data, revoke my certificates, and edit each of the application source code files in version 6.3 to make sure that this helps (this is not the case).

Answer 1

You are probably using an older version of Quick. Inside Xcode there should be a menu option for "updating to the latest version of fast"

This error can also occur if you use a beta version of the fast version that is ahead of the application store.

If you are using the beta version of Xcode, open your project in the latest version and try building again. - You cannot send applications compiled in beta to the application store.

If you are using an old swift, try to figure out which menu option allows you to upgrade.

And its this:
"click the" Edit "menu, then select" Convert ">" In Swift 1.2. "