Fatal error: Uncaught Error: Class "Symfony\Component\Config\Definition\BaseNode" not found in C:\xampp\htdocs\hannoole\PMS\vendor\symfony\config\Definition\VariableNode.php:24 Stack trace: #0 {main} thrown in C:\xampp\htdocs\hannoole\PMS\vendor\symfony\config\Definition\VariableNode.php on line 24