iOS Xcode 12.0 Swift 5 'AppDelegate' is annotated with @main and must provide a main static function of type () -> Void or () throws -> Void
Change @main
to @UIApplicationMain
and ignore any resulting warnings.
Source: https://developer.apple.com/documentation/xcode-release-notes/xcode-12-release-notes
A newly-created iOS project using the Swift language may no longer build after enabling Mac Catalyst. (67885114)
Workaround: Replace the
@main
annotation on the App Delegate with@UIApplicationMain
.