Fatal error: Uncaught Error: Class "Symfony\Component\Config\Definition\Builder\NodeDefinition" not found in D:\xampp\htdocs\pimcore\my-project\vendor\symfony\config\Definition\Builder\VariableNodeDefinition.php:22 Stack trace: #0 {main} thrown in D:\xampp\htdocs\pimcore\my-project\vendor\symfony\config\Definition\Builder\VariableNodeDefinition.php on line 22