Hey @sunson29,
You don’t need to copy all the files individually to your local machine. You can easily download all the files associated with a particular assignment at once, instructions here. Once you have downloaded all the files and made the changes mentioned in the thread that you referred to, I don’t think that you should face any more errors, but if you do, feel free to let us know, and we will help you out.
Cheers,
Elemento