Fatal error: Uncaught Error: Interface "Symfony\Bundle\SecurityBundle\DependencyInjection\Security\UserProvider\UserProviderFactoryInterface" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\security-bundle\DependencyInjection\Security\UserProvider\LdapFactory.php:25 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\security-bundle\DependencyInjection\Security\UserProvider\LdapFactory.php on line 25