Question

An unhandled lowlevel error occurred. The application logs may have details.

I deployed my first rails project following deploying-a-rails-app-on-ubuntu-14-04-with-capistrano-nginx-and-puma after lot of issues, I completed all the steps almost in 4 days.

But now when I point my web browser to my server IP it say

An unhandled lowlevel error occurred. The application logs may have details.

whats the issue now and how to see application logs ?

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You need to look in your app directory logs for puma or webserver. I just had this and found this message:

Rack app error: #<RuntimeError: Missing secret_token and secret_key_base for ‘production’ environment, set these values in config/secrets.yml>