Adding private library

Ok, what it seems from the dependency graph is that platformio finds the library, but the errors still exist. This is somehow related to the IntelliSense? It doesn’t look like I have compilation error and I have also tried to include the header/source file into an src subfolder but the problem still persists.

Also sometimes and while I have open both files header and source the below pop up messages appear and the files instantly close

Screenshot_7