Fatal error: Uncaught Error: Interface 'Magento\Quote\Api\Data\ProductOptionExtensionInterface' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-configurable-product/Test/Unit/Model/Product/ProductOptionExtensionAttributes.php:12 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-configurable-product/Test/Unit/Model/Product/ProductOptionExtensionAttributes.php on line 12