Entity Framework update model from database issue

Question

I am working on a project that was compiled and executed pretty fine before updating the Entity Framework model from the database. After updating I get errors like that:

<project> does not contain a definition for 'SaveChanges'
<project> does not contain a definition for 'ExecuteStoreQuery'

But there is a reference to System.Data.Entity in my project. What actually I have done with database I've only added few columns to table.

What is the reason for this issue?

Answer 1

Had the same issue. From the designer view select all models delete and then give a Update Model From Database. Worked for me.