Fatal error: Uncaught Error: Class 'Symfony\Component\Config\Definition\Builder\NodeDefinition' not found in /home/itscm/dev.its.cm/apps/vendor/symfony/config/Definition/Builder/ArrayNodeDefinition.php:23 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/apps/vendor/symfony/config/Definition/Builder/ArrayNodeDefinition.php on line 23