title: FOSUserBundle login form not showing after extending layout.html.twig
body: <p>I've read the guide and after installing, configuring and overriding the default template I can browse to my Login page but only my header and footer show up, there is no login form.</p>
  
  <p>config.yml:</p>
  
  <pre><code>fos_user:
      db_driver: orm
      firewall_name: main
      user_class: WX\ExchangeBundle\Entity\TblUser
  </code></pre>
  
  <p>routing.yml:</p>
  
  <pre><code>fos_user_security:
      resource: "@FOSUserBundle/Resources/config/routing/security.xml"
  
  fos_user_profile:
      resource: "@FOSUserBundle/Resources/config/routing/profile.xml"
      prefix: /Dashboard
  
  fos_user_register:
      resource: "@FOSUserBundle/Resources/config/routing/registration.xml"
      prefix: /SignUp
  
  fos_user_resetting:
      resource: "@FOSUserBundle/Resources/config/routing/resetting.xml"
      prefix: /ResetPassword
  
  fos_user_change_password:
      resource: "@FOSUserBundle/Resources/config/routing/change_password.xml"
      prefix: /profile
  </code></pre>
  
  <p>security.yml:</p>
  
  <pre><code># app/config/security.yml
  security:
      encoders:
          FOS\UserBundle\Model\UserInterface:
              algorithm: bcrypt
              cost: 15
  
      role_hierarchy:
          ROLE_ADMIN:       ROLE_USER
          ROLE_SUPER_ADMIN: [ROLE_USER, ROLE_ADMIN, ROLE_ALLOWED_TO_SWITCH]
  
      providers:
          fos_userbundle:
              id: fos_user.user_provider.username_email
  
      firewalls:
          main:
              pattern: ^/
              form_login:
                  provider: fos_userbundle
                  csrf_provider: form.csrf_provider
                  login_path: /Login
              logout:       true
              anonymous:    true
  
      access_control:
          - { path: ^/Login$, role: IS_AUTHENTICATED_ANONYMOUSLY }
          - { path: ^/SignUp, role: IS_AUTHENTICATED_ANONYMOUSLY }
          - { path: ^/ResetPassword, role: IS_AUTHENTICATED_ANONYMOUSLY }
          - { path: ^/Confirm, role: IS_AUTHENTICATED_ANONYMOUSLY }
          - { path: ^/Dashboard/, role: ROLE_ADMIN }
  </code></pre>
  
  <p>app\Resources\FOSUserBundle\views\layout.html.twig:</p>
  
  <pre><code>{% extends '::base.html.twig' %}
  
  {% block title %}{% endblock %}
  
  {% block body %}
      {% block fos_user_content %}{% endblock fos_user_content %}
  {% endblock %}
  </code></pre>
  
  <p>Controller:</p>
  
  <pre><code>namespace WX\ExchangeBundle\Controller;
  
  use Symfony\Bundle\FrameworkBundle\Controller\Controller;
  use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
  use Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
  use Sensio\Bundle\FrameworkExtraBundle\Configuration\Method;
  use JMS\SecurityExtraBundle\Annotation\Secure;
  
  class UserController extends Controller
  {
      /**
       * @Route("/Login", name="wx_exchange_login")
       * @Template("WXExchangeBundle:User:login.html.twig")
       * User log up - Open to public
       * Authenticates users to the system
       */
      public function loginAction()
      {
          return array();
      }
  
      /**
       * @Route("/Dashboard", name="wx_exchange_dashboard")
       * @Template("WXExchangeBundle:User:user.html.twig")
       * @Secure(roles="IS_AUTHENTICATED_FULLY")
       * Dashboard - secured for authenticated users
       * Determines if a user is logged in and redirects them to the user dashboard or login page
       */
      public function dashboardAction()
      {
          return array();
      }
  }
  </code></pre>
  
  <p>WXExchangeBundle:User:login.html.twig:</p>
  
  <pre><code>{% extends 'FOSUserBundle::layout.html.twig' %}
  
  {% block title %}Login{% endblock %}
  
  {% block body %}
      {% block fos_user_content %}{% endblock fos_user_content %}
  {% endblock %}
  </code></pre>
  
  <p>It's not clear from the documentation if I'm supposed to return something in my Controller action. Is this the problem?</p>