Swift: “Use of undeclared type” when trying to push to existing view controller

so I'm trying to push to existing view controller on the storyboard programmatically ,but I'm getting Use of undeclared type: LoginViewController even that I set the Storyboard ID to LoginViewController here is my code:

import UIKit

class ViewController: UIViewController

@IBOutlet weak var myButton: UIButton!

@IBAction func Button(_ sender: UIButton)
if let ButtonImage = myButton.image(for: .normal),
let Image = UIImage(named: "ButtonAppuyer.png"),
UIImagePNGRepresentation(ButtonImage) == UIImagePNGRepresentation(Image)

let loginVC = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "LoginViewController") as! LoginViewController
self.navigationController?.pushViewController(loginVC, animated: true)
else
print("OK")



override func viewDidLoad()
super.viewDidLoad()


override func didReceiveMemoryWarning()
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.




Thank you in advance!

1 Answer
1

Make sure you create a new class LoginViewController that inherits from UIViewController.

LoginViewController

To do so go to the File menu > New > File

In the iOS tab, choose Cocoa Touch Class

And then Next

Give the class name LoginViewController, and make it a subclass of UIViewController

LoginViewController

UIViewController

Click Next and then Create. That will add a new file to your project, and you could/should customize its contents later.

In your storyboard, in the Identity Inspector tab, make sure to set the class name and the identifier to LoginViewController.

LoginViewController

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