Devise Secret Key was not set

Question

I am developing a Rails 4 app using the Active Admin gem for the administration back end. Active Admin in turn uses Devise for user authentication. Now, when I try to deploy

Answer 1

Well, I have been following this post and tried almost everything here. I have added the key to devise.rb. But I was still getting the same error.

Maybe a stupid answer, but all I had to do was to push the devise.rb key to the repository.