Fatal error: Uncaught Error: Class "Symfony\Component\Config\Definition\BaseNode" not found in /home/projetwewv/www/licence00/monapp/vendor/symfony/config/Definition/ArrayNode.php:23 Stack trace: #0 {main} thrown in /home/projetwewv/www/licence00/monapp/vendor/symfony/config/Definition/ArrayNode.php on line 23