Error: Failed to generate a user instance of SQL Server

Question

I\'m trying to connect to an MDF. I\'ve even gone to the lengths of re-installing sql server express entirely (it is now the only flavor of SQL installed on my box, where p

Answer 1

In addition to the other solutions here, this one may also be helpful. Ensure the Application Pool is running as network service, and not ApplicationPoolIdentity.

This solution was found here: http://blogs.msdn.com/b/webdevelopertips/archive/2010/05/06/tip-106-did-you-know-how-to-create-the-aspnetdb-mdf-file.aspx