Fatal error: Uncaught Error: Class "Magento\Framework\Api\AbstractSimpleObject" not found in /home/jasainfo/public_html/dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Model/Data/FakeAttributeMetadata.php:13 Stack trace: #0 {main} thrown in /home/jasainfo/public_html/dev/tests/integration/_files/Magento/TestModuleExtensionAttributes/Model/Data/FakeAttributeMetadata.php on line 13