title: Xcode 7.3 / Swift 2: "No method declared with Objective-C selector" warning
body: <p>I've been using selectors for a while, and even after migrating to Swift I was able to use them without issues. That's how I was using on Swift 2 without issues until I updated Xcode to version 7.3:</p>
  
  <p><a href="https://i.stack.imgur.com/WwbOK.png"><img src="https://i.stack.imgur.com/WwbOK.png" alt="enter image description here"></a></p>
  
  <p>As use can see I use selectors with NSTimer.</p>
  
  <p>This is the action that is called:</p>
  
  <pre><code> func Start () {
  
   }
  </code></pre>
  
  <p>As you can see Xcode 7.3 now gives a warning "No method declared with Objective-C selector". By clicking on the warning, Xcode offers a quick fix to the code by adding "Selector", but then I still get the same warning:<a href="https://i.stack.imgur.com/9if8f.png"><img src="https://i.stack.imgur.com/9if8f.png" alt="enter image description here"></a></p>