Problems starting an NServiceBus

I've created a very simple NServiceBus console application to send messages. However I cannot start the bus as it complains with a very vague error about 'Object reference not set to an instance of an object'.

        Configure config = Configure.With();
        config = config.DefaultBuilder();
        config = config.BinarySerializer();
        config = config.Unicast开发者_Python百科Bus();
        IStartableBus startableBus = config.CreateBus();
        IBus Bus2 = startableBus.Start(); // **barf**

It's driving me mad, what am I missing? I thought the DefaultBuilder should be filling in any blanks?

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Hmm, looks like a reference to ncqrs.NserviceBus is causing it to go wrong even though I'm not actually using it yet

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Looks like manually adding the Assemblies in the overload to With() did the trick, not sure what's upsetting it but that's for another day