Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (`magento`.`catalog_product_entity`, CONSTRAINT `FK_CAT_PRD_ENTT_ATTR_SET_ID_EAV_ATTR_SET_ATTR_SET_ID` FOREIGN KEY (`attribute_set_id`) REFERENCES `eav_attribute_set` (`attribute_set_id`) ON DE)' in D:\xampp\htdocs\magento\lib\Zend\Db\Statement\Pdo.php:228 Stack trace: #0 D:\xampp\htdocs\magento\lib\Zend\Db\Statement\Pdo.php(228): PDOStatement->execute(Array) #1 D:\xampp\htdocs\magento\lib\Varien\Db\Statement\Pdo\Mysql.php(110): Zend_Db_Statement_Pdo->_execute(Array) #2 D:\xampp\htdocs\magento\lib\Zend\Db\Statement.php(300): Varien_Db_Statement_Pdo_Mysql->_execute(Array) #3 D:\xampp\htdocs\magento\lib\Zend\Db\Adapter\Abstract.php(479): Zend_Db_Statement->execute(Array) #4 D:\xampp\htdocs\magento\lib\Zend\Db\Adapter\Pdo\Abstract.php(238): Zend_Db_Adapter_Abstract->query('INSERT INTO `ca...', Array) #5 D:\xampp\htdocs\magento\lib\Varien\Db\Adapter in D:\xampp\htdocs\magento\lib\Zend\Db\Statement\Pdo.php on line 234