When I try to push my app to Heroku I get this response:
fatal: \'heroku\' does not appear to be a git repository
fatal: Could not read from remote repositor
I got the same error and it turned out I was in the wrong directory. It's a simple mistake to make so double check that you are in the root and then run heroku create and heroku git push master again. Of course you must have done git init, as mentioned in StickMaNX answer above, already before the heroku steps.