Adding templated controller with reading and writing and views using Entity Framework

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C#

MVC

entity-foundation

Trying MVC on simple examples I've faced a problem with creating templated controller with reading and writing and views using Entity Framework.

I choose model class Album.cs

public class Album
{
    public int AlbumId { get; set; }
    public int GenreId { get; set; }
    public int ArtistId { get; set; }
    public string Title { get; set; }
    public decimal Price { get; set; }
    public string AlbumArtUrl { get; set; }
    public Genre Genre { get; set; }
}

My data context is MusicStoreEntities:

public class MusicStoreEntities : DbContext
{
    public DbSet<Album> Albums { get; set; }
    public DbSet<Genre> Genres { get; set; }
}

The class Genres is

public class Genre
{
    public int GenreId { get; set; }
    public string Name { get; set; }
    public string Description { get; set; }
    public List<Album> Albums { get; set; }
}

The problem is that when I press the button "Add" in the dialog of adding new controller, the IDE throws th message-box with the text "Unable to restore metadata for (models_namespace).Album. Using the same DbCompiledModel to create contexts against different types of database servers is not supported. Instead, create a separate DbCompiledModel for each type of server being used".

Please, help to understand what's the problem and what it wants from me.

I use EF version 5 and MVC 4.</pre>