I\'ve searched around for many hours on end looking to a solution to my seemingly easy-to-fix problem. It\'s not that my search turned up nothing, it\'s that my search turne
I had the same issue. And I tried to reset my keys as everyone said, but it still didn't worked. For was because I renamed the app.
So what I did was to reset my keys and also rename app from console. Check this question for more information: Heroku push app problem