Fatal error: Uncaught Error: Class 'Symfony\Component\Config\Definition\Builder\NodeDefinition' not found in /home/slsparamedicalco/public_html/vendor/symfony/config/Tests/Fixtures/Builder/BarNodeDefinition.php:16 Stack trace: #0 {main} thrown in /home/slsparamedicalco/public_html/vendor/symfony/config/Tests/Fixtures/Builder/BarNodeDefinition.php on line 16