Building error: cannot open Skeleton.aex
Hello, I am a very junior programmer so probably my mistake is very dumb, but I could not find and fix it.
I have: Adobe AE CC 2017 Win SDK, Visual Studio 2015.
Problem: when I try to build Skeleton project (or Build All solution) I get this error:

Is my Visual Studio failing to work with .aex files? Or it can be that I need to set some paths differently (I haven't changed anything in SDK solution)?
