title: exc_breakpoint (code=exc_i386_bpt subcode=0x0)
body: <p>For some reason, my program crashes, displaying this error for both these lines of code</p>
  
  <p>Line Error 1)</p>
  
  <pre><code>@IBAction func doneTapped(sender: AnyObject)
  {
    var randomNumber = Int(arc4random_uniform(2))
    if (randomNumber == 1) {
          self.performSegueWithIdentifier("segueLib1", sender: nil)
      }
  
    else{
          self.performSegueWithIdentifier("segueLib2", sender: nil)
      }
  }
  </code></pre>
  
  <p>Line Error 2)</p>
  
  <pre><code>override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
  
     var madLibs1 = segue.destinationViewController as MadLib1ViewController
  
     var madLibs2 = segue.destinationViewController as MadLib2ViewController
  </code></pre>
  
  <p>I'm aiming to randomly segue between two view controllers, MadLib1ViewController and MadLib2ViewController, as doneTapped is pressed.However, whenever the button is tapped, it instead crashes and displays:</p>
  
  <pre><code>exc_breakpoint (code=exc_i386_bpt subcode=0x0) 
  </code></pre>
  
  <p>I have eliminated all physical, blue breakpoints in the code. Can someone explain to me the error or and how to resolve it. Thanks!</p>