Fatal error: Uncaught Error: Class "Magento\Catalog\Model\Product" not found in /var/www/magento/html/app/code/Aligent/GroupedSwatches/Catalog/Model/Product.php:20 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/Aligent/GroupedSwatches/Catalog/Model/Product.php on line 20