Je potrebno dodati Reference? C#

Pozdravljeni.

Zanima me zakaj mi pri tej kodi:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace DatabaseFirstSample

{

    class Program

    {

        static void Main(string[] args)

        {

            using (var db = new BloggingContext())

            {

                // Naredi in shrani nov blog

                Console.Write("Vpiši ime za nov blog: ");

                var name = Console.ReadLine();



                var blog = new Blog{ Name = name };

                db.Blogs.Add(blog);

               db.SaveChanges();



                // Pokaži vse blog v podatkovni bazi

                var query = from b in db.Blogs

                            orderby b.Name

                            select b;



                Console.WriteLine("Vsi blogi v podatkovni bazi:");

                foreach (var item in query)

                {

                    Console.WriteLine(item.Name);

                }



                Console.WriteLine("Pritisni gumb za izhod...");

                Console.ReadKey();



            }

        }

    }

}

Izpiše ta prolem pri ADD:

Error   2   'System.Data.Objects.ObjectSet<DatabaseFirstSample.Blog>' does not contain a definition for 'Add' and no extension method 'Add' accepting a first argument of type 'System.Data.Objects.ObjectSet<DatabaseFirstSample.Blog>' could be found (are you missing a using directive or an assembly reference?)

Ali morem dodati kakšno referenc-o ali kaj?

Ali je problem kje drugje?

No sporočam, da sem rešil kar hitro stvar sem dobil potem na eni spletni strani:

Namesto .ADD sem dal .AddObject če bo kdo kdaj potreboval.

Mam pa še eno napako:

Error 1 Running transformation: Please overwrite the replacement token '$edmxInputFile$' with the actual name of the .edmx file you would like to generate from. 1 1 DatabaseFirstSample

Lp

Rešil tudi to, drugo napako dejansko zanemarimo in deluje stvar.

Lp