Fatal error: Uncaught Error: Interface 'Magento\Framework\EntityManager\Operation\ExtensionInterface' not found in /home/esecureh/public_html/magdemo/dev/tests/api-functional/_files/Magento/TestModuleDefaultHydrator/Model/ResourceModel/ReadHandler.php:17 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/dev/tests/api-functional/_files/Magento/TestModuleDefaultHydrator/Model/ResourceModel/ReadHandler.php on line 17