var data: NSDictionary = NSJSONSerialization.JSONObjectWithData(responseData, options:NSJSONReadingOptions.AllowFragments, error: error) as NSDictionary;
Now in beta-3
var error: AutoreleasingUnsafePointer = nil var data: NSDictionary = NSJSONSerialization.JSONObjectWithData( w, options:.AllowFragments, error: error ) as NSDictionary;