Fatal error: Uncaught Error: Class 'Magento\Framework\DataObject' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-webapi/Model/Rest/Swagger.php:19 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-webapi/Model/Rest/Swagger.php on line 19