asp.net mvc Invalid value for key 'attachdbfilename'

Question

I am currently reading Manning\'s \"ASP.NET MVC 4 in Action\" book and trying to get the first example to work.

Within my test application, I built a simple Model a

Answer 1

I tried finding a solution for this particular error without success.

Fixed it in the end by updating the .Net Framework 4 to 4.0.2. Patch and details can be found Here is the link

Hope it helps