Fatal error: Uncaught Error: Class 'Symfony\Component\Config\Definition\Builder\NumericNodeDefinition' not found in C:\xampp\htdocs\plugins\Symfony\Component\Config\Definition\Builder\IntegerNodeDefinition.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\plugins\Symfony\Component\Config\Definition\Builder\IntegerNodeDefinition.php on line 21