I just installed the latest version of Wix v3.7. I created the project "Implementation of Excel 2010" VS 2010 and, in the same solution, Wix "Setup Project".
The problem is that when I try to reference the add-in project from the Wix project, it is not there,

I tried a simple console application, and in this case works well.
Question - why the link to the add-in project cannot be added? Any fix or workaround?
Thanks in advance!
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