error: src refspec master does not match any. error: failed to push some refs to 'git@github.com:.git'

If you are a github newbie as like me, it will help you.
Here is what I got message from git after I made new repository.

error: src refspec master does not match any.
error: failed to push some refs to 'git@github ... .git'

I googled and found this solution. It works for me.

$ touch README
$ git add README
$ git add *
$ git commit -m 'my first commit'
$ git push origin master --force