Can not find System.Windows Assembly

Question

This is the error we get:

Error 1 The type \'System.Windows.Point\' is defined in an assembly that is not referenced. You must add a reference to as

Answer 1

Add the same references in your test project as you see as references in the project you are testing.

I got something like this and added:

PresentationCore PresentationFramework WindowsBase

Now it seems to stay quiet.