After Update to 6.3.0 from 6.2.3 i get the error:
In ClassExistenceResource.php line 179:
Class “Shopware\Core\Framework\DataAbstractionLayer\EntityExtensionInterface” not found while loading “Nextag\Checkout\Content\OrderExtension”.
but the Class is used and refrenced correct. Cache has also been cleaned
What can i do?