Fatal error: Uncaught Error: Interface "Symfony\Component\Security\Http\Session\SessionAuthenticationStrategyInterface" not found in /home/marcgron/www/SSA/v2/vendor/symfony/security-http/Session/SessionAuthenticationStrategy.php:28 Stack trace: #0 {main} thrown in /home/marcgron/www/SSA/v2/vendor/symfony/security-http/Session/SessionAuthenticationStrategy.php on line 28