Config Transformation on NLog does not work

Question

I have a web project (ASP.NET MVC 4 project) that has a number of configurations stored in Web.Config and in NLog.config files.

I have

Answer 1

Working example when nlog is in web.config - making maximal use of variables to minimise required transformations

Transform file:

The trick is to namespace all the nlog elements - nlog, variable