Fatal error: Uncaught Error: Interface 'Symfony\Component\Config\Definition\Builder\NodeParentInterface' not found in /home/soh-works/www/3good_old/vendor/symfony/config/Definition/Builder/TreeBuilder.php:21 Stack trace: #0 {main} thrown in /home/soh-works/www/3good_old/vendor/symfony/config/Definition/Builder/TreeBuilder.php on line 21