Symfony3.2"security.firewall.map.context.main"依赖于不存在的服务^我的身份验证处理程序^

在我个人的Symfony 3.2项目(https://github.com/pc-magas/photoalbum)上因为我想获得一个Json而不是基于http://www.webtipblog.com/adding-an-ajax-login的重定向-form-to-a-symfony-project /我做了以下身份验证管理器:

     * @param   RouterInterface $router
     * @param   Session $session
     */
    public function __construct( RouterInterface $router, Session $session )
    {
        $this->router  = $router;
        $this->session = $session;
    }

    /**
     * onAuthenticationSuccess
     *
     * @author  Joe Sexton 
     * @param   Request $request
     * @param   TokenInterface $token
     * @return  Response
     */
    public function onAuthenticationSuccess( Request $request, TokenInterface $token )
    {
        // if AJAX login
        if ( $request->isXmlHttpRequest() ) {

            $array = array( 'status' => true ); // data to return via JSON
            $respOnse= new Response( json_encode( $array ) );
            $response->headers->set( 'Content-Type', 'application/json' );

            return $response;

            // if form login
        } else {

            if ( $this->session->get('_security.main.target_path' ) ) {

                $url = $this->session->get( '_security.main.target_path' );

            } else {

                $url = $this->router->generate( 'home_page' );

            } // end if

            return new RedirectResponse( $url );

        }
    }

    /**
     * onAuthenticationFailure
     *
     * @author  Joe Sexton 
     * @param   Request $request
     * @param   AuthenticationException $exception
     * @return  Response
     */
    public function onAuthenticationFailure( Request $request, AuthenticationException $exception )
    {
        // if AJAX login
        if ( $request->isXmlHttpRequest() ) {

            $array = array( 'status' => false, 'message' => $exception->getMessage() ); // data to return via JSON
            $respOnse= new Response( json_encode( $array ) );
            $response->headers->set( 'Content-Type', 'application/json' );

            return $response;

            // if form login
        } else {

            // set authentication exception to session
            $request->getSession()->set(SecurityContextInterface::AUTHENTICATION_ERROR, $exception);

            return new RedirectResponse( $this->router->generate( 'login_route' ) );
        }
    }
}

我配置了services.yml这样的:

parameters:

services:
  authentication_handler:
    class: AppBundle\Security\AuthenticationHandler
    public: false
    arguments: ["@router","@session"]

我这样配置security.yml:

security:
   encoders:
        FOS\UserBundle\Model\UserInterface: bcrypt

   role_hierarchy:
        ROLE_ADMIN:       ROLE_USER
        ROLE_SUPER_ADMIN: ROLE_ADMIN

   providers:
        fos_userbundle:
            id: fos_user.user_provider.username

   firewalls:
        main:
            pattern: ^/
            form_login:
                provider: fos_userbundle
                csrf_token_generator: security.csrf.token_manager
                check_path:      security_check_route
                success_handler: authentication_handler
                failure_handler: authentication_handler

            logout:       true
            anonymous:    true

   access_control:
        - { path: ^/login$, role: IS_AUTHENTICATED_ANONYMOUSLY }
        - { path: ^/register, role: IS_AUTHENTICATED_ANONYMOUSLY }
        - { path: ^/resetting, role: IS_AUTHENTICATED_ANONYMOUSLY }
        - { path: ^/admin/, role: ROLE_ADMIN }

但是我得到以下错误:

服务"security.firewall.map.context.main"依赖于不存在的服务"authentication_handler".

你有什么想法可以解决问题吗？我已将authentication_handler我的服务设置为services.yml文件,但我收到上述错误.