I am trying to submit an update to iTunes Connect, built with Xcode 9.2 on Microsoft App Center.The post-submission automated checks are rejecting the app with the following message:"Invalid Swift Support - The SwiftSupport folder is missing. Rebuild your app using the current public (GM) version of Xcode and resubmit it."Given I'm already using the latest public GM, what am I supposed to do?best regards,Andrew