Fatal error: Uncaught Error: Interface 'Symfony\Component\Security\Http\Authentication\AuthenticationSuccessHandlerInterface' not found in /home/soh-works/www/Stepup_test/vendor/symfony/security-http/Authentication/DefaultAuthenticationSuccessHandler.php:27 Stack trace: #0 {main} thrown in /home/soh-works/www/Stepup_test/vendor/symfony/security-http/Authentication/DefaultAuthenticationSuccessHandler.php on line 27