undefined method `devise_for' in rails

Question

After I install devise and create a user model. I rake db:migrate and then I rake routes. I then get a error with \"undefined method `devise_for\' for

Answer 1

If you have the Devise gem specified in the Gemfile, just make sure you have the following in your routes.rb file:

 devise_for :users

Also, here's a trick to make sure Devise is mapped properly, run: rails c, (the Rails app console) in your app's folder and then the following command line:

 Devise.mappings.keys

You should see:

=> [:user] 

Cheers!