errorin nop commerce documentation

we are trying the Plugin with data access. Here when we create the builder class ProductViewTrackerRecordBuilder and getting the following error when using the example code in the documentation.

PLEASE ASSIST.

Error  CS0308  The non-generic method 'IColumnOptionSyntax<ICreateTableColumnOptionOrWithColumnSyntax, ICreateTableColumnOptionOrForeignKeyCascadeOrWithColumnSyntax>.ForeignKey(string, string)' cannot be used with type arguments  Nop.Plugin.Appfinity.MyFirstPlugin

What version of nopCommerce are you using ?
What is the link to the documentation page are you looking at ?

HI,
Im using the latest 4.3
Documentation
https://docs.nopcommerce.com/en/developer/plugins/plugin-with-data-access.html

I can’t see anything about those methods you are trying to use on the documentation page
Here is another thread that has some info and links to Fluent Migrator documentation
https://www.nopcommerce.com/en/boards/topic/81549/nopcommerce-43-beta-fluent-migrator-workflow

Hi @yidna,
The error is actually in the line where we define the foreign key
ForeignKey<Product>(onDelete: Rule.Cascade)

Is this working for you? Visual studio intellisense is not showing such an extension method available. I dont kow if this is because of any reference not added.

No I dont use it
There is similar in src43\Libraries\Nop.Data\Mapping\Builders\Orders\OrderBuilder.cs
.WithColumn(nameof(Order.BillingAddressId)).AsInt32().ForeignKey<Address>(onDelete: Rule.None)
There are some notes on Google saying it is not supported but ...?
https://stackoverflow.com/questions/45565700/is-it-possible-to-add-a-cascading-delete-to-an-existing-relationship-using-fluen
Search Google for "Fluent Migrator ForeignKey<Product>(onDelete"

This error only pops up after I add using FluentMigrator.Builders.Create.Table;
and why does it only cause issue with
.WithColumn(nameof(ProductViewTrackerRecord.ProductId)).AsInt32().ForeignKey<Product>(onDelete: Rule.Cascade)

but not
.WithColumn(nameof(ProductViewTrackerRecord.CustomerId)).AsInt32().ForeignKey<Customer>(onDelete: Rule.Cascade)

Please refer this link
https://www.nopcommerce.com/en/boards/topic/87735/nopcommerce-43-linq2db-foreign-key