Fatal error: Uncaught Error: Class "Symfony\Component\ExpressionLanguage\Node\ArrayNode" not found in C:\Apache24\htdocs\cms_upgrade\vendor\symfony\expression-language\Node\ArgumentsNode.php:21 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cms_upgrade\vendor\symfony\expression-language\Node\ArgumentsNode.php on line 21