Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DependencyInjection\ConfigurableExtension" not found in C:\xampp\htdocs\BK\bateriasec\vendor\jms\serializer-bundle\DependencyInjection\JMSSerializerExtension.php:23 Stack trace: #0 {main} thrown in C:\xampp\htdocs\BK\bateriasec\vendor\jms\serializer-bundle\DependencyInjection\JMSSerializerExtension.php on line 23