Fatal error: Uncaught Error: Interface 'Symfony\Component\Security\Core\User\UserInterface' not found in C:\Apache24\htdocs\fixedasset\vendor\symfony\security-core\User\User.php:23 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\fixedasset\vendor\symfony\security-core\User\User.php on line 23