Fatal error: Uncaught Error: Class 'Magento\Framework\Api\AbstractExtensibleObject' not found in /home/esecureh/public_html/magdemo/dev/tests/api-functional/_files/Magento/TestModuleMSC/Model/Data/Eav/AttributeMetadata.php:15 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/dev/tests/api-functional/_files/Magento/TestModuleMSC/Model/Data/Eav/AttributeMetadata.php on line 15