Fatal error: Uncaught Error: Interface 'Symfony\Component\Security\Http\Authentication\UserAuthenticatorInterface' not found in /home/benjamincb/demos/acdg-site/vendor/symfony/security-bundle/Security/UserAuthenticator.php:30 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg-site/vendor/symfony/security-bundle/Security/UserAuthenticator.php on line 30