Fatal error: Uncaught Error: Interface 'Magento\ConfigurableProduct\Pricing\Price\PriceResolverInterface' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-configurable-product/Pricing/Price/FinalPriceResolver.php:11 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-configurable-product/Pricing/Price/FinalPriceResolver.php on line 11