ahum.. I just didn't understand your post.
Now, after some further reading, I don't quite understand it either except
the 1st line which is almost clear.

So, based on the content of the 1st line I would say, maybe it's a typo?

Try
Activator.CreateInstance<Void>()
instead of
Activator.CreateInstance<void>()

(V != v)
because there is a (System.)Void  structure, but there is no such thing as a
void instance.