Hey Guys i really need your help with this one…
My Task was to create a complete Game Demo in a very short time…I worked 3days and nights without resting to accomplish this task.
I was nearly finished (only occlusion culling was missing) and wanted to create a copy of the project. I copied the whole project on my external harddrive and another place on my computer…so i had three copys of the project.
I’ve changed something in the normal project and some of the objects started to become weird. so i said open project and wanted to open the the copy from the other location. But the whole project is messed up…all dependencies are missing.
Some of the standard assets are no longer laodet. the folder structure is corrupted and every link in every game object is broken…what the hell happened?
I wanted to hand in my work in one or two hours…but this is impossible by now…
Every single copy of my project is corrupted… is there any way to fix this? what happened to my project how cann all independent copies be corrupted at the same time…when they all were created at a “working” point of time?
i really need your help guys!
I Noticed something weird
The project is 4 days old…why does the explorer say it would be more than a year old (at the marked files)
Most likely the time stamps are old because its default assets that you didn’t overwrite in your project.
But I don’t know why its not working. Even without meta files copying the Assets, ProjectSettings and Library folders should still work. Did you try to copy on top of the old project? Without meta files you really can’t merge stuff from your backup with newer stuff.
If your project is really corrupted then unless you used meta files I’m afraid there really is no recovery. If you used meta files all you need to do is make a work folder with the Assets and ProjectSettings folders. With meta files those two folders are all you really need to backup. Working with meta files is much simpler and intuitive and conflicts are generally possible to resolve.
However without meta files you need the Library folder and that can be tricky at best. That’s why we recommend using meta files for version control software. That being said making a full copy of everything should really work. Did you have Unity open with unsaved changes while you took your backup? That might have left one or more files “open” and unable to copy properly.
I’m sorry for your troubles, and hope you manage to save your work.
Thank you for your reply! I should maybe use some sort of svn in the future 
I have worked through the whole night and rebuild everything…kinda tired now…but better than not having this project finished 
The only thing i can’t fix are the Image Effects. The links to the Shaders are broken…and i don’t really know where i can reference the image effects to the appropriate shader…
Thanks for your reply!
EDIT: I just found that i can assign the refernces to the shaders when i click the java script in the inspector!