Fatal error: Uncaught Error: Interface 'Magento\ConfigurableProduct\Model\ResourceModel\Attribute\OptionSelectBuilderInterface' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-configurable-product/Model/ResourceModel/Attribute/OptionSelectBuilder.php:16 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-configurable-product/Model/ResourceModel/Attribute/OptionSelectBuilder.php on line 16