Error from tutorial missing, different error arises afterwards.

I did it with Rails 4. I found this solution to work well:

add file registrations_controller.rb with

class RegistrationsController < Devise::RegistrationsController

private

def sign_up_params params.require(:user).permit(:first_name, :last_name, :email, :password, :password_confirmation) end

def account_update_params params.require(:user).permit(:first_name, :last_name, :email, :password, :password_confirmation, :current_password) end end

Update routes.rb with

devise_for :users, :controllers => { registrations: 'registrations' }

http://jacopretorius.net/2014/03/adding-custom-fields-to-your-devise-user-model-in-rails-4.html

Without knowing the details of your setup, it's hard to accurately answer your questions, but I believe you have most likely installed Rails 4 rather than Rails 3. In Rails 4 they have changed how they manage the error you are seeing. Instead of setting up attr_accessible in the model you need to setup permitted parameters in the controller.

Devise will automatically handle this for any of their standard fields, but you do need to set them for fields you create on the User model.

You have two options, one is to switch to a Rails 3 environment for the course or two research the necessary changes to make the code work with Rails 4. You can check your Rails version from the command line with "rails -v".

To see what's in the DB you can install a program like SQLite Browser to see the records or you can go into the rails console on the command line ("rails console") and then "User.all" to get all of the User data you've saved.