I am not using storyboard AT ALL but I am still getting this error

Question

I am not using main.storyboard at all and making everything through code, but I get this error with this code in my app delegate.

Failed to instantiate the default view controller for UIMainStoryboardFile 'Main' - perhaps the designated entry point is not set?

var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        let rootView = HomeCollectionViewController(collectionViewLayout: UICollectionViewFlowLayout())

        if let window = self.window {
            window.rootViewController = rootView
        }

        return true
    }

Did you add a view controller to the storyboard? Even if you don't want to use the storyboard, you should a dummy view controller that points your class — ridvankucuk, Jul 18 '17 at 06:06
The comment by @ridvankucuk is the one that solved my problem — joethemow, Jul 18 '17 at 20:09

score 2 · Answer 1 · answered Jul 18 '17 at 06:21

If you are not planning on using the storyboard you need to still make some configurations in the project file to let the Xcode know. Under target -> Deployment info you can see a setting for Main Interface, set it as blank then it will not look for the entry point in the storyboards.

Also, when you are doing everything in code, UIWindow instance needs to be instantiated and made visible which allows you to start presenting view controllers.

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    let viewController = TestViewController()

    self.window = UIWindow(frame: UIScreen.main.bounds)
    self.window?.rootViewController = viewController
    self.window?.makeKeyAndVisible()

    return true
}

Salman Ghumsani · Answer 2 · 2017-07-18T06:34:32.620

1

You can just delete the key from your .plist file Main storyboard file baseand run it again.

Also if you are getting the black screen you have to setup window by self.window?.makeKeyAndVisible() like above answer.

edited Jul 18 '17 at 06:34

answered Jul 18 '17 at 06:22

Salman Ghumsani

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He has not set a window, if he does that he would probably end up with a black screen. – GoodSp33d Jul 18 '17 at 06:27
Yes, You are right !! thanks for your recommendation, but he clearly, ask `I am not using storyboard AT ALL but I am still getting this error` – Salman Ghumsani Jul 18 '17 at 06:29
So that is a solution of error, not the black screen. – Salman Ghumsani Jul 18 '17 at 06:29
Well yes you are right :) But he's probably ok with having a dummy storyboard and a view controller :D – GoodSp33d Jul 18 '17 at 06:37
1

Okay, but I also update my answer by pointing out your answer..!! – Salman Ghumsani Jul 18 '17 at 06:40

score 0 · Answer 3 · answered Jul 19 '17 at 06:10

Above my comment, adding an answer. If you are using a storyboard which is dummy for you at this point, you should add a View Controller to your UIStoryboard. If you want to remove your UIStoryboard, you can still continue without it. In stackoverflow its been answered here.

I am not using storyboard AT ALL but I am still getting this error

3 Answers3