Fatal error: Uncaught Error: Interface 'Magento\Framework\Config\SchemaLocatorInterface' not found in /home/esecureh/public_html/magdemo/dev/tests/integration/framework/Magento/TestFramework/Workaround/Override/Config/SchemaLocator.php:15 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/dev/tests/integration/framework/Magento/TestFramework/Workaround/Override/Config/SchemaLocator.php on line 15