Heroku error when launch rails3.1 app missing postgres gem

Question

I am trying to deploy to heroku.

Rails 3.1.0.rc4,

I get the following error from Heroku logs:

Starting process with command: `thin -p 48902          


        

Answer 1

I found a solution in this Heroku article.

As Jared said, they suggest to create a different group for postgresql.