Symfony2: Unable to find the controller for path "/login_check"

I hope this helps . I found the solution to my problem
I added the /backend prefix to my paths, removed the 'anonymous: ~' line and commented out the ACL for backend.

    firewalls:
    dev:
        pattern:  ^/(_(profiler|wdt)|css|images|js)/
        security: false
    login_firewall:
        pattern:    ^/backend/login$
        anonymous:  ~
    backend:
        pattern:    ^/backend
        form_login:
            provider: entity
            login_path: /backend/login
            check_path: /backend/login_check
            #use_forward: true
        logout:
            path:   /backend/logout
            target: /

access_control:
    #- { path: ^/backend, roles: ROLE_USER }

login:
    pattern:   /backend/login
    defaults:  { _controller: VitaSecurityBundle:Default:login }
login_check:
    pattern:   /backend/login_check
logout:
    pattern:   /backend/logout

wish of those help It's crazy. There was no error with Symfony. I'm using Jquerymobile 1.3.1 for the frontend and after every login the url in the browser points to http://myapp.localhost/app_dev.php/login_check. I got the right content after login, but when viewing sourcecode I see the error: Unable to find the controller for path “/login_check”. And when I use the browser refresh button I see the classic symfony 2 failure site.
When I remove all the jquerymobile js and css, the login system works as expected. Maybe I need to change the login form from post to some kind of ajax submitting.

I wish did fix the issue. Follow the instructions closely on the symfony docs for Using a Login Form. If you follow these instructions, you shouldn't have any issues with your login_check.

Hope that helps The route login_check is not behind the firewall because the login_check route pattern matches the login firewall which has no security.

login:
    pattern:  ^/login     # This matches /login_check
    security: false

login:
    pattern:  ^/login$
    security: false

access_control:
    - { path: ^/login$, role: IS_AUTHENTICATED_ANONYMOUSLY }