Heroku R10 Boot Timeout Error

I have deployed a small web app on Heroku made using Bottle framework in Python. I have no clue why I am getting the boot timeout here - 2013-12-25T17:53:23.098442+00:00 heroku[web

Solution 1:

You are listening on 127.0.0.1, instead of on your public IP. Use host='0.0.0.0' in your call to run().