title: Tap gesture not working for me
body: <p>I am getting started with this <a href="https://developer.apple.com/library/prerelease/ios/referencelibrary/GettingStarted/DevelopiOSAppsSwift/Lesson4.html#//apple_ref/doc/uid/TP40015214-CH6-SW1" rel="nofollow">Apple tutorial</a>.</p>
  
  <p>So I created a Tap Gesture by drag and drop on Image View, Then I control-drag into my <code>UIViewControler</code> and the Event (Action) is created successfully.</p>
  
  <p>But my problem is that it is not firing the event. Is there any other thing I have to do?</p>