By default, Visual C # 2010 targets the .Net Framework 4 Client Profile, which is a subset of the full .Net Framework 4 and both of these assemblies are missing.
Go to the project menu and select the menu item / Your name / Proj properties ... On the application tab, change the Target structure: from the .NET Freamework 4 client profile to .NET Framework 4.
This is my first project with any of Visual / anything /, NHibernate, Fluent, etc., so it took a while to find out, and Google could not find the answers anywhere, so I hope this helps.
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