Why is my edmx file not updating

Question

I have a database first ASP.NET MVC 5 EF6 project. I\'m using VS2015 CE. When I change my database (SQL Server 2012), I then go to VS to update my edmx file like this:

Answer 1

When faced with this issue, i solved my by change the username and password...so i would say, make sure you have a valid connection string in your edmx