title: "unknown type name import" error in iOS
body: <p>I Had tried to include swift ViewController File in to Objective-C project
  but i unable to do it, it shows error like <strong>unknown type name import</strong> how to solve this please any one help for this issue.</p>
  
  <p>Here I Send my Code and ScreenShot.</p>
  
  <pre><code>import UIKit
  @objc class SigViewController2: UIViewController {
  
  @IBOutlet weak var cameraBtn: UIButton!
  
  @IBOutlet weak var imageBtn: UIButton!
  
  @IBOutlet weak var settingsBtn: UIButton!
  
  @IBOutlet weak var mediaBtn: UIButton!
  
  
  override func viewDidLoad() {
      super.viewDidLoad()
  
      // Do any additional setup after loading the view, typically from a nib.
  }
  override func viewWillAppear(animated: Bool) {
      super.viewWillAppear(true)
      navigationController?.navigationBarHidden = false
  
      self.navigationItem.title = "Main";
  }
  override func supportedInterfaceOrientations() -&gt; UIInterfaceOrientationMask {
  
      // Only allow Portrait
      return UIInterfaceOrientationMask.Portrait
  }
  
  override func preferredInterfaceOrientationForPresentation() -&gt; UIInterfaceOrientation {
  
      // Only allow Portrait
      return UIInterfaceOrientation.Portrait
  }
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/Tjo4Z.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Tjo4Z.png" alt="enter image description here"></a></p>