Article on using Git in DropBox Doesn't Seem to Work

I found this article on using Git in Dropbox as a secondary repository. The problem when when I try to add the remote directory to my project and I get the following message:

git remote add file://开发者_如何转开发/Users/me/Dropbox/Projects/Social-Linking dropbox
fatal: 'file:///Users/me/Dropbox/Projects/Social-Linking' is not a valid remote name

I followed the steps one step at a time and on a Mac.

You are probably doing

git remote add file:///Users/me/Dropbox/Projects/Social-Linking remotename

Where you should be doing

git remote add remotename file:///Users/me/Dropbox/Projects/Social-Linking