Infrastructure namespace name does not exist in system.data.entity namespace

Question

I get an error when using the infrastructure namespace in the system.data.entity namespace

Answer 1

You need to add a reference to the assembly .NET System.Data.Entity.dll .

Answer 2

You also need a link to EntityFramework, or you will get the same error.

Answer 3

I had a similar problem. I made a reference to System.Data.Entity , but he complained about System.Data.Entity.Infrastructure . The solution was to add an EntityFramework nuget . After installing it, it actually removes the original System.Data.Entity link and points to a new DLL, which includes System.Data.Entity and System.Data.Entity.Infrastructure .