Exception RuntimeError in Rack application object (Missing `secret_key_base` for 'production' environment, set this value in `config/secrets.yml`)

production:
  adapter: postgresql
  database: myappname_production
  username: deploy
  password: mypassword

production:
  secret_key_base: e0f6563b486e81d04ec9341854a26b8342a61675df8f3*********