title: contains 1 abstract method and must therefore be declared abstract or implement the remaining methods in magento 2
body: <p>run a setup:upgrade,setup:di:compile then shown this error</p>
  <p>Fatal error: Class Magento\Framework\Api\AttributeValueFactory contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Magento\Framework\Data\Collection\AbstractDb::getResource) in C:\xampp\htdocs\mage-test\vendor\magento\framework\Api\AttributeValueFactory.php on line 45</p>