Attempted to load class "MyApp" from namespace - php

Question

I using symfony 2 and ratchet and memcache on a websocket chat project ratchet working good with symfony and i tested it on the "hello world" app on the offical web site docs
but the problem is when I run this line
new Chat(new MyApp(), $this->getContainer()),
i get this error
Attempted to load class "MyApp" from namespace
my command line code
<?php
// myapplication/src/sandboxBundle/Command/SocketCommand.php
// Change the namespace according to your bundle
namespace check\roomsBundle\Command;
use Ratchet\Session\SessionProvider;
use Symfony\Component\HttpFoundation\Session\Storage\Handler;
use Doctrine\Common\Cache\MemcacheCache;
use Ratchet\App;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\HttpFoundation\Session\Storage\Handler\MemcacheSessionHandler;
use Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage;
// Include ratchet libs
use Ratchet\Server\IoServer;
use Ratchet\Http\HttpServer;
use Ratchet\WebSocket\WsServer;
use Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand;
// Change the namespace according to your bundle
use check\roomsBundle\Sockets\Chat;
use Doctrine\ORM\EntityManager;
use Symfony\Component\HttpFoundation\Session\Session;
class WsServerCommand extends ContainerAwareCommand
{
protected function configure()
{
$this->setName('sockets:start-chat')
// the short description shown while running "php bin/console list"
->setHelp("Starts the chat socket demo")
// the full command description shown when running the command with
->setDescription('Starts the chat socket demo')
; }
protected function execute(InputInterface $input, OutputInterface $output)
{
$output->writeln([
'Chat socket',// A line
'============',// Another line
'Starting chat, open your browser.',// Empty line
]);
$memcache = new \Memcache;
$memcache->connect('localhost', 11211);
$session = new SessionProvider(
new Chat(new MyApp(), $this->getContainer()),
new Handler\MemcacheSessionHandler($memcache)
);
$server = new App('localhost');
$server->route('/sessDemo', $session);
$server->run();
}
}
the Chat.php code
<?php
namespace check\roomsBundle\Sockets;
use tuto\testBundle\Entity\Users;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
use Ratchet\WebSocket\WsServerInterface;
use Ratchet\MessageComponentInterface;
use Ratchet\ConnectionInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Doctrine\ORM\EntityManager;
use Symfony\Component\DependencyInjection\ContainerInterface as Container;
use Symfony\Component\HttpFoundation\Session\Session;
/**
* This component will allow access to user data (FOSUserBundle)
* for each connection in your Ratchet application.
*/
class Chat implements MessageComponentInterface, WsServerInterface
{
/**
* #var \Ratchet\MessageComponentInterface
*/
protected $_app;
/**
* #var \Symfony\Component\DependencyInjection\ContainerInterface
*/
protected $_container;
/**
* #param MessageComponentInterface $app
* #param ContainerInterface $container
*/
public function __construct(MessageComponentInterface $app, ContainerInterface $container)
{
$this->_app = $app;
$this->_container = $container;
}
/**
* {#inheritdoc}
*/
public function onOpen(ConnectionInterface $conn)
{
if (!isset ($conn->Session) || !$conn->Session instanceof Session) {
throw new \RuntimeException('Session is not defined. Make sure that SessionProvider is executed before FOSUserProvider.');
}
try {
$token = unserialize($conn->Session->get('_security_main'));
$user = $token->getUser();
$provider = $this->_container->get('fos_user.user_provider.username');
$conn->User = $provider->refreshUser($user);
} catch (Exception $ex) {
$conn->User = null;
}
return $this->_app->onOpen($conn);
}

Answer 1

There isn't any use MyApp; on the top of your page.
use AppBundle\Classes ?