Short version:
You should just update the existing remote:
$ git remote set-url origin [email protected]:ppreyer/first_app.git Long version:
As the error message indicates, there is already a remote configured with the same name. So you can either add the new remote with a different name or update the existing one if you don't need it.
To add a new remote, called for example github instead of origin (which obviously already exists in your system), do the following:
$ git remote add github [email protected]:ppreyer/first_app.git Remember though, everywhere in the tutorial you see "origin" you should replace it with "github". For example $ git push origin master should now be $ git push github master.
However, if you want to see what that already existing origin remote is, you can do a $ git remote -v. If you think this is there by some error, you can update it like so:
$ git remote set-url origin [email protected]:ppreyer/first_app.git