Double console output?

Question

Suddenly when I run my app locally, I get double console output. Does anybody know what might have caused this? The problem exists both when running Thin and Unicorn

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Answer 1

I've noticed this happens because of the rails_12factor gem. If you comment out gem rails_12factor from your Gemfile the double output should go away. My guess is that the double output isn't important to worry about since you need the gem anyways for Heroku. As for why the rails_12factor gem causes this I have no idea.