Scenes empty after copying project to Mac

I was developing an iOS project on Windows 8.1 with Unity 5.0.1. To test the current version of my game, I copied the entire project folder onto a USB thumbstick, then transferred the entire project folder onto the Mac to build onto an iPad. However, when opening the project in Unity 5.0.1 on the Mac machine, all of my scenes are completely empty. Nothing appears, not even in the Hierarchy.

After searching online, I have attempted to set the metadata to "visible" under the project settings and copying it all over to the Mac again, but the scenes are still empty.

I have also attempted to build the project on the PC, then copying the xCode project over to the Mac, but that is presenting its own problems, which I suppose are a discussion for another forum.

Any thoughts or solutions? Thanks ahead of time.