Fatal error: Uncaught Error: Class 'Symfony\Component\Config\Definition\VariableNode' not found in /home/itscm/dev.its.cm/webserivesits/vendor/symfony/config/Definition/ScalarNode.php:28 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/webserivesits/vendor/symfony/config/Definition/ScalarNode.php on line 28