RavenDB session.Store exception
===

I am starting to learn RavenDB. I installed Server version on the server machine, and added Client dlls to a simple console application. When I am trying to run the application, it gives me a WebException: "The request was aborted: The request was canceled."

Here is the code:

           static void Main(string[] args)
        {
            var ravenIntroArticle = new Article()
            {
                Text = "RavenDB fits into a movement that is called ...",
                Title = "RavenDB Introduction",
            };

            var csharpUsingArticle = new Article()
            {
                Text = "The full value of the C# using statement ...",
                Title = "Your Friend the C# Using Statement",
            };

            var nutsAndProteinArticle = new Article()
            {
                Text = "Nuts are a great source of protein ...",
                Title = "Nuts and Protein",
            };

            using (IDocumentStore documentStore = new DocumentStore() { Url = "http://rtest01:8080" })
            {
                documentStore.Initialize();
                using (IDocumentSession session = documentStore.OpenSession())
                {
                    session.Store(ravenIntroArticle); // the exception happens here
                    session.Store(csharpUsingArticle);
                    session.Store(nutsAndProteinArticle);
                    session.SaveChanges();
                }
            }

Could you please tell what I am missing?

Thanks.