title: Strike through NSAttributedString: "Type of expression is ambiguous without more context"
body: <p>Can anybody tell me what's wrong ?</p>
  
  <pre><code>let myTitle = NSAttributedString(string: Xdevices[row].deviceName!,
                attributes: [NSFontAttributeName:UIFont(name: "Georgia", size: 
                15.0)!,NSForegroundColorAttributeName:UIColor.orangeColor(), 
                NSStrikethroughStyleAttributeName: NSUnderlineStyle.StyleSingle])
  </code></pre>
  
  <p>The error is:</p>
  
  <blockquote>
    <p>Type of expression is ambiguous without more context</p>
  </blockquote>
  
  <p>This happened after inserting <code>NSStrikethroughStyleAttributeName: NSUnderlineStyle.StyleSingle</code></p>