Fatal error: Uncaught Error: Interface "Symfony\Component\Security\Http\Authentication\AuthenticationSuccessHandlerInterface" not found in I:\www\picman\vendor\symfony\security-http\Authentication\CustomAuthenticationSuccessHandler.php:21 Stack trace: #0 {main} thrown in I:\www\picman\vendor\symfony\security-http\Authentication\CustomAuthenticationSuccessHandler.php on line 21