title: Receiver has no segue with identifier error message
body: <p>I am using xcode 7 beta and swift 2.0. I am following a tutorial (youtube.com/watch?v=PKOswUE731c).</p>
  
  <p>In short i have a storyboard with 3 views; a protected vc, a login vc and RegisterViewController. I have set 2 segues </p>
  
  <blockquote>
    <p>segue modal with protected_vc &lt;-> login_vc identified with loginView</p>
    
    <p>segue modal on a button in login_vc &lt;-> RegisterViewController identified with registerView</p>
  </blockquote>
  
  <p>I encountered a problem when with a register button on my login vc. If i click the register button it crashes the app and i get the message <code>'Receiver (&lt;registerLogin.RegisterViewController: 0x7f97235f6140&gt;) has no segue with identifier 'loginView''</code></p>
  
  <p>Now i notice in the tutorial selecting a segue gives another dropdown, in my case i only see push - modal -popover - replace and custom. Could this be the cause??</p>
  
  <p>Or this part ViewController</p>
  
  <pre><code> override func viewDidAppear(animated: Bool) {
          self.performSegueWithIdentifier("loginView", sender: self);
      }
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/EQVtx.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EQVtx.png" alt="enter image description here"></a></p>
  
  <p>Complete code for RegisterViewController is</p>
  
  <pre><code>import UIKit
  
  class RegisterViewController: ViewController {
  
  
      @IBOutlet weak var userEmailTextField: UITextField!
  
      @IBOutlet weak var userPasswordTextField: UITextField!
      @IBOutlet weak var repeatPasswordTextField: UITextField!
  
      override func viewDidLoad() {
          super.viewDidLoad()
  
          // Do any additional setup after loading the view.
      }
  
      override func didReceiveMemoryWarning() {
          super.didReceiveMemoryWarning()
          // Dispose of any resources that can be recreated.
      }
  
  
      @IBAction func registerButtonTapped(sender: AnyObject) {
  
          let userEmail = userEmailTextField.text
          let userPassword = userPasswordTextField.text
          let repeatPassword = repeatPasswordTextField.text
  
          //No empty fields
          if((userEmail!.isEmpty || userPassword!.isEmpty || repeatPassword!.isEmpty)){
              //Display alert message
              displayMyAlertMessage("All fields required")
              return
          }
          //Check if passwords match
          if(userPassword != repeatPassword){
              //Display alert message 
              displayMyAlertMessage("Passwords mistakes")
              return
          }
  
          //Store data
          NSUserDefaults.standardUserDefaults().setObject(userEmail, forKey: "userEmail")
          NSUserDefaults.standardUserDefaults().setObject(userPassword, forKey: "userPassword")
  
          NSUserDefaults.standardUserDefaults().synchronize()
  
          //Display alert message with confirmation
          let myAlert = UIAlertController(title: "Alert", message: "Registration successful", preferredStyle: UIAlertControllerStyle.Alert)
          let okAction = UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default) { action in
              self.dismissViewControllerAnimated(true, completion: nil)
          }
  
  
      }
  
  
      func displayMyAlertMessage(userMessage:String){
          let myAlert = UIAlertController(title: "Alert", message: userMessage, preferredStyle: UIAlertControllerStyle.Alert)
  
          let okAction = UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default, handler: nil)
  
          myAlert.addAction(okAction)
  
          self.presentViewController(myAlert, animated: true, completion: nil)
      }
  
  }
  </code></pre>
  
  <p>and the complete error message (manually wrapped first line):</p>
  
  <pre><code>2015-10-11 07:17:57.378 registerLogin[667:10462] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', 
  reason: 'Receiver (&lt;registerLogin.RegisterViewController: 0x7fb7f978d4c0&gt;) 
  has no segue with identifier 'loginView''
  *** First throw call stack:
  (
      0   CoreFoundation                      0x0000000102d249b5 __exceptionPreprocess + 165
      1   libobjc.A.dylib                     0x0000000104923deb objc_exception_throw + 48
      2   UIKit                               0x00000001036caba3 -[UIViewController shouldPerformSegueWithIdentifier:sender:] + 0
      3   registerLogin                       0x0000000102b4260f _TFC13registerLogin14ViewController13viewDidAppearfS0_FSbT_ + 127
      4   registerLogin                       0x0000000102b42661 _TToFC13registerLogin14ViewController13viewDidAppearfS0_FSbT_ + 49
      5   UIKit                               0x00000001036cd82e -[UIViewController _setViewAppearState:isAnimating:] + 830
      6   UIKit                               0x00000001036ce1b0 -[UIViewController _endAppearanceTransition:] + 262
      7   UIKit                               0x000000010369950e -[UIPresentationController transitionDidFinish:] + 827
      8   UIKit                               0x0000000103857c17 -[_UICurrentContextPresentationController transitionDidFinish:] + 42
      9   UIKit                               0x000000010369c97e __56-[UIPresentationController runTransitionForCurrentState]_block_invoke_2 + 183
      10  UIKit                               0x0000000103eb105c -[_UIViewControllerTransitionContext completeTransition:] + 101
      11  UIKit                               0x00000001036963fb -[UITransitionView notifyDidCompleteTransition:] + 252
      12  UIKit                               0x000000010369610c -[UITransitionView _didCompleteTransition:] + 1344
      13  UIKit                               0x0000000103698878 -[UITransitionView _transitionDidStop:finished:] + 104
      14  UIKit                               0x00000001035c3a63 -[UIViewAnimationState sendDelegateAnimationDidStop:finished:] + 241
      15  UIKit                               0x00000001035c3e12 -[UIViewAnimationState animationDidStop:finished:] + 80
      16  QuartzCore                          0x000000010799bd70 _ZN2CA5Layer23run_animation_callbacksEPv + 308
      17  libdispatch.dylib                   0x000000010540d4bb _dispatch_client_callout + 8
      18  libdispatch.dylib                   0x00000001053f53ff _dispatch_main_queue_callback_4CF + 1738
      19  CoreFoundation                      0x0000000102c84e69 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
      20  CoreFoundation                      0x0000000102c463b9 __CFRunLoopRun + 2073
      21  CoreFoundation                      0x0000000102c45918 CFRunLoopRunSpecific + 488
      22  GraphicsServices                    0x000000010722dad2 GSEventRunModal + 161
      23  UIKit                               0x000000010354199e UIApplicationMain + 171
      24  registerLogin                       0x0000000102b4323d main + 109
      25  libdyld.dylib                       0x000000010544292d start + 1
  )
  libc++abi.dylib: terminating with uncaught exception of type NSException
  </code></pre>
  
  <p>I have set the segues</p>
  
  <p><a href="https://i.stack.imgur.com/oyC74.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/oyC74.png" alt="enter image description here"></a></p>
  
  <p>and from the register button
  <a href="https://i.stack.imgur.com/bv83I.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/bv83I.png" alt="enter image description here"></a></p>
  
  <p>A find in project on the term loginView only gives 2 search results see image, so  i don't get where RegisterViewController "thinks" it needs loginView</p>
  
  <p><a href="https://i.stack.imgur.com/V43AK.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/V43AK.png" alt="enter image description here"></a></p>