EF 4.1 exception “The provider did not return a ProviderManifestToken string”

Question

I am trying to replicate an example found on MSDN. I am using ASP.NET and EF 4.1 (CTP?). I\'ve used NuGet to install the EntityFramework package.

I am getting this e

Answer 1

I had a similar issue with the MvcMusicStore app. I changed a line in the Web.config from "Instance=true" to "Instance=false". It sometimes works without this tweak but I don't know what causes the difference. Reading this http://msdn.microsoft.com/en-us/library/ms254504.aspx didn't really help.