Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Extension\Extension" not found in /var/www/html/app/vendor/symfony/http-kernel/Bundle/BundleExtension.php:28
Stack trace:
#0 {main}
thrown in /var/www/html/app/vendor/symfony/http-kernel/Bundle/BundleExtension.php on line 28