> @yeshua-watson-rheem please check the references of Rubberduck when you open the Project in Visual Studio. I don't need it on VS 2015 express, but [this stackoverflow q&a](https://stackoverflow.com/questions/20743961/the-name-interaction-does-not-exist-in-the-namespace-http-schemas-microsoft) mentions you need a reference to `Microsoft.Expression.Interactions` AND `System.Windows.Interactivity`
From what I can tell, the project doesn't have `Microsoft.Expression.Interactions`. Could you try