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.

First of all Github has a good documentation on renaming a remote to help with this issue.

Check your remote repositories that you're connected to

git remote -v

This should return a list in following format

origin  git@github.com:github/git-reference.git (fetch)
origin  git@github.com:github/git-reference.git (push)

That might help you figure out what the original 'origin' pointed to.

At this moment you could follow either of the below methods to resolve this error based on your requirements.

• Remove the origin and your new repository as in

  git remote rm origin git remote add origin newrepo-url

• If you want to keep the remote connection that you see with the -v, but still want to follow the workflow without having to remember 'github' (or some other name) for your repo, you can rename your other repository with the command:

  git remote rename [current name] [new name]

as in:

git remote rename origin oldreponame

Once done, you should be able to change origin to new repository with

git remote add origin newrepo-url

• You could also use a new name for remote url as

  git remote add github newrepo-url

Remember though, everywhere now onwards you'd be using github as your remote name. For example git push origin master should now be git push github master.