Our test project has just been upgraded to .NET 4.0. That caused some problems with the .NET 2.0 references, particularly SQLite. Here's the error you get right after a Nuget install:
NHibernate.HibernateException: Could not create the driver from NHibernate.Driver.SQLite20Driver, NHibernate, Version=126.96.36.19900, Culture=neutral, PublicKeyToken=aa95f207798dfdb4. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentException: Unable to find the requested .Net Framework Data Provider. It may not be installed.
This is a well-known issue. Basically, SQLite is a .NET 2.0 targeted app. I am working in .NET 4.0. I followed Mohamed Meligy's instructions and added some edits to my test assembly's configuration file (app.config).
ReSharper and MSPEC ran my specs just fine. So, I then ran my MSBUILD project. I have a target that runs the mspec.exe console runner. I get the HibernateException again.
Well, it turns out that the executables that you "nuget" from the package don't include configuration files. Sure, I had the edits for running mpsec from within Visual Studio's IDE using ReSharper's TestRunner. But mspec.exe is its own AppDomain -- you still need those configuration edits there.
To apply the configuration edits, you need a file. The nuget package didn't create them, so I did it manually.
In my packages/Machine.Specifications.0.4.12/tools folder, I created an mspec.exe.config file, and one for each of the other exe's. Inside, I placed the startup node with the legacy redirect. Additionally, I added the system.data node. Now, each mspec executable will leverage the mixed-mode framework setup to make SQLite happy.
Now, all tests pass just as they do in my test runner within my IDE.