If you are coming to this series of posts for the first time you might check out my introductory post for a little context.
When you first install the package:
This NuGet tool automatically updates your project so it will execute the tool on compilation. Awesome if you are not an MSBuild expert as it just configures itself for you straight from the package install.
Once installed, run a build on your solution. On first build you get an error. You’re probably thinking '”How can this tool be erroring, we just added it to the project”. This error is a good thing. It’s telling you that you now have a manual step to configure it correctly.
Go check out the codeplex site as it will explain more on how to use it.