Missing client_id with Devise and Facebook-Omniauth
问题 Here is my initializers/devise.rb code for Facebook: require "omniauth-facebook" config.omniauth :facebook, "app_key", "app_secret" And I have added: devise :omniauthable into the model I want to be able to use Facebook with. When I click on this link: <%= link_to "Sign in with Facebook", user_omniauth_authorize_path(:facebook) %> I get: An OAuthException with message: "message": "Missing client_id parameter.", Notice that the app_key and app_secret are the ones that I can see on my Facebook