I install Xcode 14 and create an APP. Then I try to [Product -> Run] and Emulator is black screen. Then I delete SceneDelegate.swift and add some code in the AppDelegate.swift . Here is my AppDelegate.swift . import UIKit @main class AppDelegate: UIResponder, UIApplicationDelegate {     var window: UIWindow?     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {         // Override point for customization after application launch.         return true     } } Here is my ViewController.swift. import UIKit class ViewController: UIViewController {     override func viewDidLoad() {         super.viewDidLoad()         // Do any additional setup after loading the view.a         self.view.backgroundColor = UIColor.red     } } Then I try to [Product -> Run] and Emulator is black screen. It seems ridiculous.