H14 Error In Heroku - "no Web Processes Running"

error H14 happen while deploying to heroku this is my procfile: web: gunicorn -w 4 -b 0.0.0.0:$PORT -k gevent main:app log on heroku: 2017-01-23T10:42:58.904480+00:00 heroku[route

Solution 1:

The issue here is that you're not running any web dynos. You can tell Heroku to do this via:

$ heroku ps:scale web=1

This will force Heroku to spin up a web dyno, thereby executing your gunicorn command.

Solution 2:

After 3 hours of debugging, I've figured out why my app was causing this error:

1. My Procfile was incorrectly cased
2. gunicorn wasn't installed in my venv

IMO, this error should be raised on Heroku's end. As a beginner, this sort of error is difficult to trace.

More info on dyno configuration – more on initializing your heroku app.

Solution 3:

Before this command:

heroku ps:scale web=1

I had to remove and add buildpacks again and empty commit it and redeploy it to heroku.

heroku buildpacks:clear
heroku buildpacks:add --index heroku/python

Solution 4:

I was having an issue here too. My problem was that my Procfile was "Procfile.txt" . What solved my issue was to remove the file extension from Procfile, then recommit and push stuff to heroku

Solution 5:

I ran into the same problem but from a different cause. I had the hobby tier, but then canceled it and reverted back to the free tier. Doing this caused the error and how I fixed it was just re running the command from the cli:

heroku ps:scale web=1