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Editorial Team
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Asked: 2026-05-27T21:00:08+00:00

I already pushed a Play app before, so I don’t understand why I’m getting

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I already pushed a Play app before, so I don’t understand why I’m getting this error now on another app:

git push heroku master
...

-----> Heroku receiving push
 !     Heroku push rejected, no Cedar-supported app detected

This question doesn’t seem to be relevant, since I don’t have a Gemfile (my other app pushes quite fine without one). At first I had a Procfile as instructed here, but then I noticed my other working app does’t have a Procfile, so I removed it.

Here is the working app, and the problematic one.

The remote git config is

[remote "heroku"]
    url = git@heroku.com:bitcoinpotato.git
    fetch = +refs/heads/*:refs/remotes/heroku/*

The app stack is the latest – cedar.

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1 Answer

  1. Editorial Team

    You do not have an application.conf in the conf directory, which is what the Play! buildpack uses to identify the fact that the application is Play!

    You can find the Heroku buildpack here: https://github.com/heroku/heroku-buildpack-play

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