Chaining response in Kohana fails with undefined property exception

I can't seem to chain some actions together, specifically this line of code:

$messages开发者_开发知识库 = Request::factory('messages/get_messages')->execute()->response;

When I play this in my browser, Kohana fails with the following warning.

ErrorException [ Notice ]: Undefined property: Response::$response

The full line of code for this reads...

<?php defined('SYSPATH') or die('No direct script access.');
  class Controller_Profile extends Controller_Application 
  {
    public function action_index()
    {
      $content = View::factory('profile/public')
        ->set('username', 'Test User')
        ->bind('messages', $messages);
      $messages = Request::factory('messages/get_messages')->execute()->response;
      $this->template->content = $content;
    }
  }

Since I've been going through Beginners Guide by Jason D. Straughan, there have been a few little differences that I've been able to resolve but drawing a blank on this. Any pointers here would be appreciated.

This line of code is on page 81 of the book (jump to page 96 on the scribd viewer).

Try using:

$messages = Request::factory('messages/get_messages')->execute()->body();

The reason you get the Notice error is that the object Response (which is returned by Request::factory(...)->execute()) has no property called $response ( Kohana Docs 3.1 | Response OR Kohana Docs 3.2 | Response ).