ruby on rails - "Incomplete response received from application" from nginx / passenger

Question

I tried to deploy my rails app on nginx and ubuntu via capistrano like the tutorial on the page https://gorails.com/deploy/ubuntu/14.04. but at the end i get an error message:

Incomplete response received from application

in my browser. this is probably an error from passenger, but how can i figure out what to do?

Answer 1

Your rails_env production don't have required set up,probably missing secret_key_base.

Open /etc/nginx/sites-available/default and change the rails_env to development:

rails_env production;
        to
rails_env development;

If the app is loading it's not a passenger issue.

Production Solution:

1. Enter your app root
2. run: rake secret
3. copy the output
4. go to /yourapp/config/secrets.yml
5. set the production secret_key_base

Restart the passenger app :

touch /yourapp/tmp/restart.txt