urgent : Problème de REQUIRE

J'ai suivi ce tuto :

Tutoriel vidéo PHP : Développer un site : Jour 2, La structure PHP

Voici les erreurs qui me sont retourné:

( ! ) Warning: require(C:\wampserver\www\precandidature\controller\Controller.php): failed to open stream: No such file or directory in C:\wampserver\www\precandidature\core\Dispatcher.php on line 14

( ! ) Fatal error: require(): Failed opening required 'C:\wampserver\www\precandidature\controller\Controller.php' (include_path='.;C:\php\pear') in C:\wampserver\www\precandidature\core\Dispatcher.php on line 14

ET voilà mon code :

Dispatcher.php

<?php

class Dispatcher{
    var $request;
    function __construct(){
        $this->request = new Request();
        Router::parse($this->request->url,$this->request);
        $controller = $this->LoadController();
        $controller->voir();
    }
    function LoadController(){
        $name = ucfirst($this->request->controller).'Controller';
        $file = ROOT.DS.'controller'.DS.$name.'.php';
        require $file;
        return new $name($this->request);
    }

}

Request.php

<?php

class Request{
    public $url; // URL appelé par l'utilisateur 
    function __construct(){

        $url = (isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : substr($_SERVER['REQUEST_URI'], strlen(BASE_URL)-strlen($_SERVER['REQUEST_URI'])));
        $this->url = $url;

    }
}

?>

PagesController.php

<?php
    class PagesController extends Controller{
        fonction voir(){
            echo 'Merci';
        }
    }

?>

Router.php

<?php

class Router{
    static function parse($url,$request){
        $url = trim($url,'/');
        $params = explode('/',$url);
        $request->controller = $params[0];
        $request->action = isset($params[1]) ? $params[1] : 'index';
        $request->params = array_slice($params,2);

        return true ;
    }
}

?>

Controller.php

<?php

class Controller{}

?>

includes.php

<?php
require 'Request.php';
require 'Router.php';
require 'Controller.php';
require 'Dispatcher.php';

?>

index.php

<?php
define('WEBROOT', dirname(__FILE__));
define('ROOT', dirname(WEBROOT));
define('DS', DIRECTORY_SEPARATOR);
define('CORE', ROOT.DS.'core');
define('BASE_URL', dirname(dirname($_SERVER['SCRIPT_NAME'])));
require CORE.DS.'includes.php';
new Dispatcher();
?>

Mon arborescence est :

0-www

1-precandidature

2-controller -> PagesControllers.php

2-core -> Controller.php + Dispatcher.php + Router.php + Request.php + includes.php

2-model

2-view

2-webroot -> css + img + js + index.php + .htaccess

.htaccess