Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DependencyInjection\Extension" not found in C:\laragon\www\session\vendor\symfony\security-bundle\DependencyInjection\SecurityExtension.php:70 Stack trace: #0 {main} thrown in C:\laragon\www\session\vendor\symfony\security-bundle\DependencyInjection\SecurityExtension.php on line 70