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