         }
         catch let error as NSError
         {
-            self.presentRefreshErrorAlert(error)
+            self.presentRefreshErrorAlert(with: error)
         }
     }
     

    
    // MARK: Private API
    
    private func retryUploadDescriptor(_ descriptor: UploadDescriptor, completion: ErrorBlock)
    {
        // TODO: This should be cancellable


    
    // MARK: Alerts
    
    private func presentRefreshErrorAlert(with error: NSError)
    {
        let alert = UIAlertController(title: "Refresh Error", message: error.localizedDescription, preferredStyle: UIAlertControllerStyle.alert)
        alert.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.default, handler: nil))
