Fatal error: Uncaught Error: Class "Symfony\Component\Config\Definition\Builder\VariableNodeDefinition" not found in /home/cooperativamaism/public_html/staging/vendor/symfony/config/Definition/Builder/ScalarNodeDefinition.php:21 Stack trace: #0 {main} thrown in /home/cooperativamaism/public_html/staging/vendor/symfony/config/Definition/Builder/ScalarNodeDefinition.php on line 21