Dear Sir,

I followed up the tutorial with a class library called DinnerRepository in visual web developer 2010 express. unfortunately, it has an error message as below:

when write the code as below:
entities.RSVPs.DeleteObject(dinner.RSVPs);

error message:

NerdDinnerEntities DinnerRepository.entities

error:

the best overloaded method match for'System.Data.Objects.ObjectSet<NerdDinner.Model s.RSVP>


What does that means and how to fix it ?

any help will appreciated.

thanks