title: How to stop heroku build in progress
body: <p>I accidentally added <code>npm start</code> in the heroku post build process so now the build progress is stuck. </p>
  
  <p>I did <code>git push heroku master</code> the build started normal and my server started as it should when running <code>npm start</code>, but because the <code>npm start</code> was in the post build it never finished. Because I'm on free account I only have one concurrent build process and because of the one stuck I can't build new version.</p>
  
  <p>I already tried <code>heroku ps -a APP_NAME</code> and then <code>heroku ps:kill web.1</code> for the single process that was running, but it didn't help.</p>
  
  <p>ty</p>