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Editorial Team
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Asked: 2026-05-23T16:09:51+00:00

I have a rails app that uses Devise for user auth. In localhost:3000 my

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I have a rails app that uses Devise for user auth. In localhost:3000 my site works perfectly. I can signup, login, etc. However, when I git push heroku and try going to sign up or login, I just get a 500 error.

Some specs of my site: I’m using sqlite (I heard that may be a problem) and have changed the /users/sign_up route to /sign and /users/sign_in route to /login. My /configure/environments/development.rb has the code config.action_mailer.default_url_options = { :host => 'localhost:3000' } and /configure/environments/production.rb has the code config.action_mailer.default_url_options = { :host => 'myPersonalApp.heroku.com' }

What is wrong that is causing the 500 error only on heroku?

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1 Answer

  1. Editorial Team

    Just a thought – Do you have any outstanding migrations that you have not performed on Heroku? That’s something I always forget – Just run heroku run rake db:migrate and see if that helps. Might not be an error in your code after all.

    Hope this helps!

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