I have been working on a project locally and at some point I gave the project to someone else to work on. Since that time, I have created another package with classes and so on in my own project version. Since I want the other person to have this package, I gave him the package folder which he copied in the path ProjectName/src/packageName. Of course, he didn't see it right away, so I used New->Source Folder and refresh/clean/pray to make it work.
The question is: is there some other way to add packages to projects? as I'm not sure this is the right solution.