Warning: require_once(Zend/Application.php) [function.require-once]: failed to open stream: No such file or directory in Z:\home\localhost\www\forload.kz\index.php on line 18

Fatal error: require_once() [function.require]: Failed opening required 'Zend/Application.php' (include_path=';.;/usr/local/php5/PEAR') in Z:\home\localhost\www\forload.kz\index.php on line 18

Пытаюсь разобраться в чужом проекте

Что за ошибку кто мне может разобраться index.php
<?php

// Define path to application directory
defined('APPLICATION_PATH')
|| define('APPLICATION_PATH', realpath(dirname(__FILE__) . '/../zend_apps/forload/application'));

// Define application environment
defined('APPLICATION_ENV')
|| define('APPLICATION_ENV', (getenv('APPLICATION_ENV') ? getenv('APPLICATION_ENV') : 'production'));

// Ensure library/ is on include_path
set_include_path(implode(PATH_SEPARATOR, array(
realpath(APPLICATION_PATH . '/../library'),
get_include_path(),
)));

/** Zend_Application */
require_once 'Zend/Application.php';

// Create application, bootstrap, and run
$application = new Zend_Application(
APPLICATION_ENV,
APPLICATION_PATH . '/configs/application.ini'
);
$application->bootstrap()
->run();