Refernce to Entity Framework

I have a web MVC project with Entity Framework 4.x working fine.

Now I added a class library project in the same solution, and I have mapped different database tables successfully. .edmx is generated. Then I write a simple test class and try to build the this new project. I got error - The namespace name Infrastructure does not exist in a namespace System.Data.Entity ...

I googled it and was said I need a reference to the EntityFramework or need to install EntityFramework. I'm confused, as I already have a web MVC project working, and also .edmx has been built in the new class library project. So EntityFramework should not be a problem...?

What should do to remove this error?

I may need to add a reference to the class library project in the existing web project, so that the web project can use classes defined in the class library project, right?

I appreciate any help.
LVL 1
minglelinchAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Fernando SotoRetiredCommented:
Do you have a using statement to the Infrastructure as shown below. This namespace is found in the EntityFramework.dll so make sure that the project this is in has the Entity Framework dll as well.

using System.Data.Entity.Infrastructure;
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
minglelinchAuthor Commented:
Thank you
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
C#

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.