No #QueryParam/#RequestParam configuration for parameter 'username' - symfony

Question

Help me please, i create my own annotations extending fosrestbundle annotation, to have url in this format users?param=...&param2=...
my annotation is as follows:
<?php
namespace REST\UserBundle\Annotations;
use FOS\RestBundle\Controller\Annotations\Param;
use Symfony\Component\HttpFoundation\Request;
/**
* #Annotation
* #Target({"CLASS", "METHOD"})
*/
class CustomParam extends Param
{
/**
* {#inheritdoc}
*/
public function getValue(Request $request, $default = null)
{
return $request->request->has($this->getKey())
? $request->request->get($this->getKey(), $default)
: $request->query->get($this->getKey(), $default);
}
}
my controller is as following:
/**
* Create a User from the submitted data.<br/>
*
* #ApiDoc(
* resource = true,
* description = "Creates a new user from the submitted data.",
* statusCodes = {
* 200 = "Returned when successful",
* 400 = "Returned when the form has errors"
* }
* )
*
* #param ParamFetcher $paramFetcher Paramfetcher
*
* #CustomParam(name="username", value="foufou" ,nullable=false, strict=true, description="Username.")
* #CustomParam(name="email", value="foufou#gmail.com", nullable=false, strict=true, description="Email.")
* #CustomParam(name="password", value="foufou", nullable=false, strict=true, description="Password.")
* #CustomParam(name="plainPassword", value="foufou", nullable=false, strict=true, description="Plain Password.")
* #CustomParam(name="company_name", value="ffff", nullable=false, strict=true, description="Company.")
* #CustomParam(name="adress_zip", value="papappa", nullable=false, strict=true, description="Zip.")
* #CustomParam(name="adress_name", value="rue hhh",nullable=false, strict=true, description="Adress.")
* #CustomParam(name="adress_city", value="paris",nullable=false, strict=true, description="City.")
* #CustomParam(name="adress_country", value="France", nullable=false, strict=true, description="Country.")
*
* #return View
*/
public function postUserAction(ParamFetcher $paramFetcher)
{
$userManager = $this->container->get('fos_user.user_manager');
$user = $userManager->createUser();
$user->setUsername($paramFetcher->get('username'));
$user->setEmail($paramFetcher->get('email'));
$user->setPassword($paramFetcher->get('password'));
$user->setPlainPassword($paramFetcher->get('plainPassword'));
$user->setEnabled(true);
$user->addRole('ROLE_API');
$adress = new Adress();
$adress->setAdress($paramFetcher->get('adress_name'));
$adress->setCity($paramFetcher->get('adress_city'));
$adress->setZip($paramFetcher->get('adress_zip'));
$adress->setCountry($paramFetcher->get('adress_country'));
$company = new Company();
$company->setName($paramFetcher->get('company_name'));
$user->setAdress($adress);
$user->setCompany($company);
$view = View::create();
$errors = $this->get('validator')->validate($user, array('Registration'));
if (count($errors) == 0) {
$userManager->updateUser($user);
$view->setData($user)->setStatusCode(200);
return $view;
} else {
$view = $this->getErrorsView($errors);
return $view;
}
}
but i get this error, No #QueryParam/#RequestParam configuration for parameter 'username'