John,
Have you setup the same directory structure inside VSS? And you need to set a working folder in VSS for the Project level item for what directory that maps to on your machine.
>
>\Project
> \Common30
> \Libs
> \Progs
> \Include
> \MyApp
> \Libs
> \Progs
>
>
>MyApp is my application folder, and \Common30 contains all of my classes, .H file, libraries and etc. How should I add these to VSS from VFP?
>
>I tried to open \MyApp\myapp.pjx and add it to VSS from VFP, but it return error "\Project\Common30\Libs\myclass.vcx cannot be mapped ...."
>How to overcome this?