libMobileGestalt MobileGestalt.c:890: MGIsDeviceOneOfType is not supported on this platform [closed]

I’m studying iOS development with ObjC by an old book(for personal reasons), and this error happened when I override the didFinishLaunchingWithOptions from AppDelegate.m so I Solved by setting a global Navigation Controller, like this:

 -(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    // Override point for customization after application launch.

    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];

    RootController *rootController = [[RootController alloc] init];

    UINavigationController  *navController = [[UINavigationController alloc]initWithRootViewController:rootController];

    self.window.rootViewController = navController;

    [self.window makeKeyAndVisible];

    [rootController release];

    [navController release];

    return YES;
}

Xcode 10.0 (10A255)

Worked on iPhone and Simulator(Both iPhone 7 – iOS 12)