Unable to add a C# class library to HTML5 Metro UI

Question

I have an HTML5 Metro application project and a C# Class Library project for Metro style applications in the same solution.

When I try and add a reference from the HTML5 application to the C# class library, I get the following errors:

One or more of the selected items is not a valid reference for this type of project. Do you want to continue and add the references anyway?

then when I run the app (with a line of code in the JS trying to new up the C# class) i get

JavaScript Runtime Error: TestCsharpClass is undefined.

Is there a setting I am missing to allow this kind of reference? The class does show up in the Object Browser.

Thanks.

S

 

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