Unity3D do not include my C# libs into VS project references.

I place my C# lib into Assets folder.

Configured Platform Settings for it : only windows (Standalone: x86, x86_x64).

Creating new C# script.

VS2015 openning - do not see any of my C# libs in references, and also no namespaces available.

To make it working, i did the following for my library in assets:

Select Platform for plugin: Editor = true.

And finally it working.

(previously i had only Standalone = true, now also i have Editor = true).