The type 'System.Data.Entity.DbContext' is defined

Question

The type 'System.Data.Entity.DbContext' is defined in an assembly that is not referenced. You must add a reference to assembly 'EntityFramework Version=5.0.0.0 Culture=neutral PublicKeyToken=b77a5c561934e089'.why this prob occur several time

Rajeev Punhani · Answer

Hi Sourabh Please see the below link. http://www.howtosolutions.net/2012/08/solving-compiler-error-cs0012-system-data-entity-dbcontext-using-entity-framework/

Rajeev Punhani · Answer

Hi Sourabh You need the EntityFramework.dll reference (and not System.Data.Entity). If you are missing the reference of Entity Framework manually add it.

Ravi Patel · Answer

Hi you need to install entityFramework in your project you can install it from package manager console or nuget From the Tools menu select Library Package Manager and then click Package Manager Console . type the following command in Package Manager Console . Install-Package EntityFramework for more details check this http://www.c-sharpcorner.com/UploadFile/858292/addupdatedelete-package-and-library-from-nuget-package/ https://docs.nuget.org/consume/package-manager-console

sourabh choubey · Answer

friends i have already entity framework installed and i have already taken reference of system.data.entity.Still there is a problem....what to do

kalu singh rao · Answer

EntityFramework is install by Nuget Manager. It have all latest dll.

ketan borsdiya · Answer

Hi sourabh You need to add System.Data.Entity in reference. For add reference Right Click on References-> Add Reference. Search above namespace in Framwork pane

Vignesh Mani · Answer

Hi Friend you need to install entity frame work or add entity frame work in Visual Studio. Please find below link https://msdn.microsoft.com/en-gb/data/ee712906.aspx