title: Play Sound in Swift SpriteKit project?
body: <p>When I run this code.</p>
  
  <p><code>runAction(SKAction.playSoundFileNamed("Click.mp3", waitForCompletion: false))</code></p>
  
  <p>My app was Crashed:</p>
  
  <blockquote>
    <p>Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Resource Click.mp3 cannot be found in the main bundle'</p>
  </blockquote>