Add Controller database error in ASP.NET MVC 4

Question

When using the Add Controller helper/scaffolder with Entity Framework CRUD integration, I get the following error:

Unable to retrieve metadata for 'MyApp.Models.MyModel'. Cannot attach the file 
'C:\Users\Lev\AppData\Local\Temp\2d7daf19-d47f-df24-ac76-d3df4fg2sa\aspnet-MyApp-
20130409170533.mdf' as database 'aspnet-MyApp-20130409170533.mdf'.

The question is: Why is it looking for the database in my temp files? The database file is located in:

C:\Projects\MyApp\MyApp\App_Data

This is my connection string:

Data Source=(LocalDb)\v11.0;
Initial Catalog=aspnet-MyApp-20130409170533;
Integrated Security=SSPI;
AttachDBFilename=|DataDirectory|\aspnet-MyApp-20130409170533.mdf

And so it seems that the reference to |DataDirectory| is misbehaving. How can I set DataDirectory? If I manually put the correct path into the AttachDBFilename property, then the scaffolding works. But I'd still love to leave it as |DataDirectory|.

Answer 1

Just restart the Visual Studio. This helped at my project.