I'm absolutely certain this is just a result of me missing something very obvious, but I keep getting a string of errors when uploading from Xcode 11. All my icons are in place, but the errors are asking for alternative sizes ( i.e. 54 x 40, 148 x 100), that are even listed in the app icon location. I ended up switching back to an older version of xcode, and it uploaded just fine. But I would really like to sort this out so I can use the most recent Xcode in the future. I also get an Error ITMS- 90642: "Missing Info.plist Key," for some reason.
Again, had none of these errors in the previous xcode.