How did you transfer the files/folders from Mac to Windows?
Did you create a ZIP archive file on Mac, copy the zip somehow to Windows, then unarchived the zip?
Transferring ZIP files from Mac to Windows via ZIP is problematic. It is a well know issue. Please search Google with key “Zip Mac Windows”. You will find lots of pages where people shout loud: “names are garbled”, “files are not found” etc.
I would suggest to you not to transfer the project via zip file. Rather you should make your project backed by Git; use GitHub as the remote repository, and transfer your project between machines via the remote repository through git commands.