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Mac OSX Uploading App to Mac App Store with 2.3.1


Hey gang,

Not sure what to make of this at all, but I'm trying to get an update into the Mac App Store which I used to do fairly simply by building the Mac VM and then using App Wrapper to sign the .dylib files like the IAP extension. Using Transporter to upload the .pkg as the Application Loader has been removed by Apple. Suddenly I'm getting :

ERROR ITMS-90301: "This bundle is invalid. Apple is not currently accepting applications built with this version of Xcode."

I'm using Xcode 12.2 and tried 12.3 but both give the same error message. Google did not help me at all.