NHibernate - Where ISession.Query<T>() is located

Question

When I try to compile the following code

using System; using System.Collections.Generic; using System.Reflection; using System.Linq; using NHibernate;  namespace NewNHTest {     class A     { }      class Program     {         static void Main(string[] args)         {             ISession session;             var q = session.Query<A>();         }     } } 

I get the following error:

'NHibernate.ISession' does not contain a definition for 'Query' and no extension method 'Query' accepting a first argument of type 'NHibernate.ISession' could be found (are you missing a using directive or an assembly reference?) 

NHibernate.dll version is 3.0.0.4000.
The .Net version of project is 3.5.

What am I doing wrong?
Thank you for your help!

Answer 1

ISession.Query 

is new to NHibernate 3 and is an extension method. Try

using NHibernate.Linq 

and it should be resolved fine.