Could not load file or assembly 'WebMatrix.Data`

Question

I updated MVC4 to MVC5. When you run the application I got an error that I don\'t have WebMatrix.Data. I installed it PM> Install-Package WebMatrix.Data

Answer 1

from your package manager console I can see that your project has Successfully added 'WebMatrix.Data 2.0.30506.0' to xxx.`

So get your web.config in sync with WebMatrix.Data 2.0.30506.0