Devise generate view

I am following this tutorial:

http://www.rubyonrailstree.blogspot.com/2014/02/ruby-on-rails-device-gem-install-step.html

and I am having trouble with:

rails g devise:views

rake db:migrate

both comming up with a simmilar error of:

/home/zach/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.4/lib/active_record/dynamic_matchers.rb:26:in `method_missing': undefined method `attr_accessible' for User (call 'User.connection' to establish a connection):Class (NoMethodError)
    from /home/zach/HandCoOp/project/HandCo-op/app/models/user.rb:8:in `<class:User>'
    from /home/zach/HandCoOp/project/HandCo-op/app/models/user.rb:1:in `<top (required)>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `block in load_file'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:633:in `new_constants_in'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:442:in `load_file'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:342:in `require_or_load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:480:in `load_missing_constant'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:180:in `const_missing'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:238:in `const_get'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:238:in `block in constantize'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `each'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `inject'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `constantize'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:552:in `get'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:583:in `constantize'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise.rb:259:in `get'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/mapping.rb:103:in `to'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/mapping.rb:98:in `modules'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/mapping.rb:115:in `routes'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/mapping.rb:84:in `initialize'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise.rb:289:in `new'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise.rb:289:in `add_mapping'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/rails/routes.rb:190:in `block in devise_for'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/rails/routes.rb:189:in `each'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/rails/routes.rb:189:in `devise_for'
    from /home/zach/HandCoOp/project/HandCo-op/config/routes.rb:2:in `block in <top (required)>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `instance_exec'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `eval_block'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:315:in `draw'
    from /home/zach/HandCoOp/project/HandCo-op/config/routes.rb:1:in `<top (required)>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `block in load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:232:in `load_dependency'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `block in load_paths'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `each'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `load_paths'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:16:in `reload!'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:26:in `block in updater'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `call'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `execute'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:27:in `updater'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/finisher.rb:71:in `block in <module:Finisher>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `instance_exec'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `run'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:55:in `block in run_initializers'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:226:in `block in tsort_each'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:427:in `each_strongly_connected_component_from'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:347:in `block in each_strongly_connected_component'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:345:in `each'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:345:in `call'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:345:in `each_strongly_connected_component'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:224:in `tsort_each'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:205:in `tsort_each'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:54:in `run_initializers'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application.rb:300:in `initialize!'
    from /home/zach/HandCoOp/project/HandCo-op/config/environment.rb:5:in `<top (required)>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `require'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `block in require'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:232:in `load_dependency'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `require'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application.rb:276:in `require_environment!'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:147:in `require_application_and_environment!'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:133:in `generate_or_destroy'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:51:in `generate'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands.rb:17:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

Am I using version of ruby that does not support this yet? I will keep looking into this error and I thank anyone who has information about this issue.

routes.rb:

Rails.application.routes.draw do
  devise_for :users


 root 'home#index'



user.rb model:

class User < ActiveRecord::Base
  # :token_authenticatable, :encryptable, :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  # Setup accessible (or protected) attributes for your model
   :email
   :password
   :password_confirmation
   :remember_me
end

thanks, hope this helps!

Solution

root 'home#index' should be changed root to: "home#index".
Starting from Rails 4 you do not use attr_accessible. You will have to remove the line.
when using a gem the better solution is to appeal to its docs. So in your case the command to generate views (after you added gem 'devise' to Gemfile and run bundle) should be

a) rails generate devise:install,

b) rails generate devise:views