I am seeing this problem in Xcode 15.1 beta. I filed a report in Feedback Assistant as well FB13258087 Hope to see a fix/workaround

Same here using Xcode 15.1 beta. I filed a report in Feedback Assistant as well: FB13258087

I think what this is (calling back to my UIKit days). If you tried to present a UIAlertController on iPad, you had to provide sourceRect and/or sourceView so that the alert could render an arrow at a button or some UI source. I'm getting this same error described, but dont' see a way to set those equivalents. I could be wrong though. This could be some other issue.

Actually my post above is incorrect. I can present the alert on iPhone and iPad simulators, but not on "designed for iPhone" or "designed for iPad".