title: Class does not implement its superclass's required members
body: <p>So I updated to Xcode 6 beta 5 today and noticed I received errors in nearly all of my subclasses of Apple's classes.</p>
  
  <p>The error states:  </p>
  
  <blockquote>
    <p>Class 'x' does not implement its superclass's required members</p>
  </blockquote>
  
  <p>Here is one example I picked because this class is currently pretty lightweight so it will be easy to post.</p>
  
  <pre><code>class InfoBar: SKSpriteNode  { //Error message here
  
      let team: Team
      let healthBar: SKSpriteNode
  
      init(team: Team, size: CGSize) {
          self.team = team
          if self.team == Team.TeamGood {
              healthBar = SKSpriteNode(color: UIColor.greenColor(), size:size)
          }
          else {
              healthBar = SKSpriteNode(color: UIColor.redColor(), size:size)
          }
          super.init(texture:nil, color: UIColor.darkGrayColor(), size: size)
  
          self.addChild(healthBar)
  
      }
  
  }
  </code></pre>
  
  <p>So my question is, why am I receiving this error, and how can I fix it? What is it that I am not implementing? I'm calling a designated initializer.</p>