title: Type 'AnyObject' does not conform to protocol 'SequenceType'
body: <pre><code>func loadThumbnails() {
  
      let paths = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true)
      let documentsDirectory:NSString = paths[0] as NSString
      var error:NSError?
      let fileManager = NSFileManager()
      let directoryContent:AnyObject = fileManager.contentsOfDirectoryAtPath(documentsDirectory, error: &amp;error)!
  
      thumbnails = [QSPhotoInfo]()
  
      for item:AnyObject in directoryContent {
          let fileName = item as NSString
          if fileName.hasPrefix(kThumbnailImagePrefix) {
              let image = loadImageFromDocumentsDirectory(fileName)
              var photoInfo = QSPhotoInfo()
              photoInfo.thumbnail = image;
              photoInfo.thumbnailFileName = fileName
              thumbnails += photoInfo
          }
      }
  }
  </code></pre>
  
  <p>the compile error is below:  </p>
  
  <blockquote>
    <p>Type 'AnyObject' does not conform to protocol 'SequenceType'</p>
  </blockquote>
  
  <p>what does this menas?</p>
  
  <p>who can help me ,thks a lot!!!!</p>