Forked Project question

Hello everyone,

Today I decided to learn a bit about using github and I finally got to fork and clone a project to my local space.

Now I forked the following project,

MrHus/Zelda

This is a game and also an engine??? I don't know what would be the correct term.
Anyways, when trying to import as a project to eclipse I couldn't I assume because it was exported in a different way. I anyways made an empty project and imported the file system... set up the project with packages... blah blah blah...

But now I get an error of the player object in the zelda.engine package in the Music, Sound, and SoundFx classes.
It's telling me the player class has not been created looking around there is actually, no player class.

Is anyone else that already has experience with git tell me if I'm doing something extremely wrong? or if I actually have to create the player class myself?