title: Swift: result["data"] always returns nil while I fetch data from Facebook using FBSDK 4.x
body: <p>I am trying to fetch albums photo from facebook using FBSDK 4.x, and I get the result as json. Then I try to access its properties like this '<strong>result?["data"]</strong>', and it <strong>always return nil</strong>. See below code:</p>
  
  <pre><code>    func fetchAlbum(){
      print(FBSDKAccessToken.currentAccessToken())
      let graphRequest: FBSDKGraphRequest = FBSDKGraphRequest(graphPath: "me?fields=albums", parameters: nil);
      graphRequest.startWithCompletionHandler({ (connection, result, error) -&gt; Void in
          if let gotError = error{
              println(gotError.description);
          }
          else{
              print("fetched data: \(result)")            
              if let graphData = result["data"] as? [FBSDKShareOpenGraphObject]{ 
                  var albums:[AlbumModel] =  [AlbumModel]();
                  for obj:FBSDKShareOpenGraphObject in graphData {
                  let desc = obj.description;
                  print(desc);
                  let name = obj.valueForKey("name") as! String;
                  print(name);
                  if(name == "ETC"){
                      let test="";
                  }
                  let id = obj.valueForKey("id") as! String;
                  var cover = "";
                  if let existsCoverPhoto : AnyObject = obj.valueForKey("cover_photo"){
                      let coverLink = existsCoverPhoto as! String;
                      cover = "/\(coverLink)/photos";
                  }
                  //print(coverLink);
                  let link = "/\(id)/photos";
                  let model = AlbumModel(name: name, link: link, cover:cover);
                  albums.append(model);
                  }
              NSNotificationCenter.defaultCenter().postNotificationName("albumNotification", object: nil, userInfo: ["data":albums]);
  
                  }else{
                      print("--------------------------")
              } 
          }
      })
  }
  </code></pre>
  
  <p>By this code above could anyone help me?</p>