rails generate rspec:install Could not find generator rspec:install.

C:\Sites\sample_app>rails generate rspec:install 
Could not find generator rspec:install.


In Gemfile add


group :development, :test do
  gem "rspec-rails"
end


Comment out


#  gem 'sass-rails',   '~> 3.2.3'
#  gem 'coffee-rails', '~> 3.2.1'

> bundle install
> rails generate rspec:install

      create  .rspec
      create  spec
      create  spec/spec_helper.rb