Tutorial: Manage relational tables get error: Field 'ItemGenreID' doesn't have a default value
I've followed the tutorial: Manage relational tables (http://www.webassist.com/community/tutorials/view_tutorial.php?tutorial=Manage-relational-tables) several times now, exactly as it says each time. But get error message: "Field 'ItemGenreID' doesn't have a default value" when I press the insert button.
Why so?