EF Core 3.1 doesn't autogenerate IDs

[webseb]

If I use a Guid based strongly typed id EF Core throws the following exception

System.InvalidOperationException : The property 'Foo.Id' could not be mapped, because it is of type 'FooId' which is not a supported primitive type or a valid entity type. Either explicitly map this property, or ignore it using the '[NotMapped]' attribute or by using 'EntityTypeBuilder.Ignore' in 'OnModelCreating'.

I can work around that issue by initializing the property

public class Foo
{
    public FooId Id { get; set; } = FooId.New();
}

but auto-generation by convention would be really nice.

Is that possible?

[webseb]

My bad, I butchered your sample code and forgot to add the nested StronglyTypedIdEfValueConverter