symfony "No route found for "GET ca"

Witam,

zaczynam przygodę z Symfony i już na początku przygody mam problem.

<?php

namespace PracaBundle\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;

class PracaController extends Controller
{
    /**
     * @Route("/praca")
     */
    public function pracaAction()
    {
        return $this->render('PracaBundle:Default:praca.html.twig');
    }
}

dlaczego wywala mi taki błąd?

Uncaught PHP Exception Symfony\Component\HttpKernel\Exception\NotFoundHttpException: "No route found for "GET ca"" at /home/cabox/workspace/var/cache/dev/classes.php line 1967
Context: { "exception": "Object(Symfony\\Component\\HttpKernel\\Exception\\NotFoundHttpException)" }

dzięki!