title: git push error while pushing to remote repository
body: <p>I am getting the following error while trying to push the changes to remote repository.</p>
  
  <p><strong>Command</strong></p>
  
  <p><code>git push heroku</code></p>
  
  <p><strong>Error</strong></p>
  
  <p><code>fatal: You are pushing to remote 'heroku', which is not the upstream of
  your current branch 'master', without telling me what to push
  to update which remote branch.</code></p>
  
  <p>Can anyone please advise what might be causing the same?</p>