All my assets are being ignored? it says its not known in the guidemapper...

I am working on a game for a school project and recently completed a level on my laptop. I copied all the files on to a USB so that I can give it to my team members so that the have a copy and then they can work on it as well. When I got home I opened unity to continue but there was nothing, except for a bunch of errors and I don’t know why.

P.S. The copied files aren’t working either.

Please help and thank you in advance.

1413037–74006–$unity-screenshot.doc.pdf (155 KB)

Found this one for you, might be able to help… but not looking too good.
http://answers.unity3d.com/questions/328102/timestamps-but-is-not-known-in-guidmapper.html