Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DependencyInjection\Extension" not found in C:\xampp\htdocs\BK\bateriasec\vendor\friendsofsymfony\user-bundle\DependencyInjection\FOSUserExtension.php:26 Stack trace: #0 {main} thrown in C:\xampp\htdocs\BK\bateriasec\vendor\friendsofsymfony\user-bundle\DependencyInjection\FOSUserExtension.php on line 26