Fatal error: Uncaught Error: Class 'Symfony\Component\Config\Definition\BaseNode' not found in C:\xampp\htdocs\ApiSigestWin\vendor\symfony\config\Definition\ArrayNode.php:23 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\vendor\symfony\config\Definition\ArrayNode.php on line 23