Can't validate and submit an App to the Mac App Store

Question

I\'ve done codesigning and submitting for iOS apps countless times. This time it struck me with the Mac App Store. I\'m repeatedly getting the same error message:

Answer 1

There is an additional issue with Keychain & XCode.

When Xcode uses a certificate, they want one and only one certificate in your keychain. If you have an expired one, as well as a valid one, Xcode often fails the operation.

So you look at your keychain using Keychain Access, and do not see an expired certificate. It is still there! The default setting for Keychain Access hides expired certificates. Goto the View menu and select Show Expired Certificates. Delete all the expired ones, they are not good for anything.

Quit Keychain Acces and Relaunch Xcode. Xcode often requires a relaunch when adding/deleting certificates.

At that point, the Archive Validate process worked for me.