title: cannot convert value of type NSMutableDictionary to expected argument type '[NSObject:AnyObject]?'
body: <p>I want to add BarCode Reader into my project but i got some problems when i tried.
  Here i have give the error code, how to solve this please any one help me for solve this issue.</p>
  
  <pre><code>let dict = NSMutableDictionary()
          dict[NSLocalizedDescriptionKey] = "Failed to initialize the application's saved data"
          dict[NSLocalizedFailureReasonErrorKey] = failureReason
          dict[NSUnderlyingErrorKey] = error
          error = NSError(domain: "YOUR_ERROR_DOMAIN", code: 9999, userInfo: dict)  //-----&gt; In this line i have a error.
  </code></pre>