How do you diagnose a 500 error on Heroku when there is no error message in the logs?

Question

I have a Rails app on Heroku that is serving 500 errors at random intervals. Web pages will display \"Internal server error\" in plain text, instead of the usual \"We\'re so

Answer 1

Try adding the rails_12factor gem to get a more robust error log ( only if you're using Heroku ).

Make sure you rake db:migrate your database on Heroku with heroku run rake db:migrate