Fatal error: Uncaught Error: Interface 'Symfony\Component\Security\Core\User\UserProviderInterface' not found in /home/lafaamicps/www/symfony/vendor/friendsofsymfony/user-bundle/FOS/UserBundle/Security/UserProvider.php:23 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/friendsofsymfony/user-bundle/FOS/UserBundle/Security/UserProvider.php on line 23