NavigationDrawer needs update?

[LordJashin32]

   func applicationDidFinishLaunching(_ application: UIApplication) {
        window = UIWindow(frame: Screen.bounds)
        window!.rootViewController = AppNavigationDrawerController(rootViewController: rootViewController,
                                                                   leftViewController: leftViewController,
                                                                   rightViewController: rightViewController)
        window!.makeKeyAndVisible()
    }

Doesn't seem to work for me but if i throw it into application constructor it does work for me.

Don't know if maybe I'm wrong. Please check.
Thanks and Cheers great project.