Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Extension\Extension" not found in I:\www\picman\vendor\twig\extra-bundle\DependencyInjection\TwigExtraExtension.php:24 Stack trace: #0 {main} thrown in I:\www\picman\vendor\twig\extra-bundle\DependencyInjection\TwigExtraExtension.php on line 24