I am trying to publish an iOS app to iTunes Connect using Appcelerator (note: this app was created by another developer).
The app uploaded fine, but iTunes then sends the email with the following error message:
Dear developer,
We have discovered one or more issues with your recent delivery for "XXXX". To process your delivery, the following issues must be corrected:
Invalid Swift Support - The SwiftSupport folder is empty. Rebuild your app using the current public (GM) version of Xcode and resubmit it.
Once these issues have been corrected, you can then redeliver the corrected binary.
Regards,
The App Store team
I'm quite new to Appcelerator, but I can't seem to find any relevant answers to this problem (although there a few answers relating to X-Code).
Turns out I just needed to update XCode!