You need to provide the path of the remote machine - you would run this on your local machine, ie the one you want to save the file TO.
scp remoteuser@remote.machine.com:/path/to/file/on/server /path/to/save/file/locally
You need to provide the path of the remote machine - you would run this on your local machine, ie the one you want to save the file TO.
scp remoteuser@remote.machine.com:/path/to/file/on/server /path/to/save/file/locally