The best way to do it is to keep everything ORGANIZED. Keep every file used in the same folder, so you simply have to copy the folder over. For an already existing project where the files used are not organized into the same folder, this will be frustrating. But there is no shortcut.

Another thing you can do, is POST THE ERROR MESSAGES you get. That way we can help you with your problems...

ADD: The fact that it is what you are supposed to do, means nothing. No one said you were wrong, but that it would simply be a pain and frustrating...