The type or namespace name 'DbContext' could not be found [closed]

Answer 1

I had this problem, read the above answer and download the entityframework.ddl but found that it is alreadt referenced. So I added the namespace and problem was solved

using System.Data.Entity;

I am using Visual Studio 2010, SP1 installed

Answer 2

For step-by-step instructions, see this new MVC / EF tutorial series: http://www.asp.net/entity-framework/tutorials/creating-an-entity-framework-data-model-for-an-asp-net-mvc-application The tutorial assumes you have installed the latest MVC 3 Tools Update and provides a link in case you haven't.

Answer 3

I had the same issue... Installing the EF from Package Manager Console worked for me

the command was: Install-Package EntityFramework

Answer 4

Visual Studio Express SP1 Right click in Solution Explorer > References > Add Library Package Reference > EntityFramework

Answer 5

I just had this issue and none of the other solutions worked for me. I'm using Visual Studio 2010 and I have two projects in my solution: UIProject and DataAccessProject. The UIProject has a reference to the DataAccessProject.

My UIProject was targeting the .Net Framework 4 but my DataAccessProject was targeting the .Net Framework 3.5 for some reason.

• I changed both projects to target .Net Framework 4
• Uninstalled then re-installed the Entity Framework NuGet Package.

Problems solved. Now I have references to both EntityFramework and System.Data.Entity

Answer 6

Right click your reference and go to manage NuGet packages, then choose online all, then NuGet package source in the search textbox type Entity Framework and install it.