ADO.NET Entity Framework: Update Wizard will not add tables

Question

I added a new ADO.Net Entity Data Model into my project and used the Update Wizard to add tables into the model. Five of the selected tables were added to the design surfac

Answer 1

You do not need to delete the entire model (that might be hundreds of tables!).

The Wizard can handle "adding new" items, but some changes such as changing composite keys and renaming columns - it doesn't know what to do - so it doesn't try - and things get out of sync.

SO: DELETE the tables in question from the Model (conceptual mode) AND from the Model.Store, and then Update the model using the Wizard, and re-add just the tables in question.