狂潮发电机不工作时，类型'rails g spree网站'

嗨，我是一个开发rails应用程序的新手，我有兴趣使用'狂欢'为我的电子商务网站。狂潮发电机不工作时，类型'rails g spree网站'

我下面这个教程大礼包从这个网站 http://guides.spreecommerce.com/getting_started.html

我做了一个新的安装为上面的教程指导我。我使用rails 1.9.3和mysql 数据库将其作为'5.1启动Spree'的一部分。一切都很好，直到我注意到登录栏不是像教程那样出现。
我做了一些研究，害得我到这个解决方案中 https://github.com/railsdog/deface/issues/12 我从这篇文章中了解，似乎问题使用Ruby 1.9.3，当来自从污损宝石一个“错误”，但问题不会出现在1.9.2中，因此我将ruby 版本更改为1.9.2以试用它。
在我安装了ruby 1.9.2后，我安装了'spree'gem，我重复了'入门教程'中的项目（使用mysql数据库）来完成教程。
现在在部分4.4.2，其中i型 '耙分贝：创建' 端子输出本

商店$耙分贝：创建

store_test已经存在
store_development已经存在
当我试着通过'rails g spree：site'生成狂欢网站，终端给我这个错误

store rails g spree:site 
      create config/spree.yml /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/spree_core-0.70.2/lib/generators/spree/site/site_generator.rb:16:in 
    `block in config_spree_yml': undefined method `version' for 
    Spree:Module (NoMethodError) from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/actions/create_file.rb:54:in 
    `call' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/actions/create_file.rb:54:in 
    `render' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/actions/create_file.rb:63:in 
    `block (2 levels) in invoke!' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/actions/create_file.rb:63:in 
    `open' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/actions/create_file.rb:63:in 
    `block in invoke!' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/actions/empty_directory.rb:114:in `call' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/actions/empty_directory.rb:114:in `invoke_with_conflict_check' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/actions/create_file.rb:61:in 
    `invoke!' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/actions.rb:95:in 
    `action' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/actions/create_file.rb:26:in 
    `create_file' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/spree_core-0.70.2/lib/generators/spree/site/site_generator.rb:15:in 
    `config_spree_yml' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/task.rb:22:in 
    `run' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:118:in 
    `invoke_task' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in 
    `block in invoke_all' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in 
    `each' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in 
    `map' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/invocation.rb:124:in 
    `invoke_all' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/group.rb:226:in 
    `dispatch' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/thor-0.14.6/lib/thor/base.rb:389:in 
    `start'  from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.2/lib/rails/generators.rb:168:in 
    `invoke' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.2/lib/strong textrails/commands/generate.rb:12:in `<top (required)>' from 
    /Usestrong textrs/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.2/lib/active_support/dependencies.rb:240:in 
    `require' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.2/lib/active_support/dependencies.rb:240:in 
    `block in require' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.2/lib/active_support/dependencies.rb:223:in 
    `block in load_dependency' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.2/lib/active_support/dependencies.rb:640:in 
    `new_constants_in' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.2/lib/active_support/dependencies.rb:223:in 
    `load_dependency' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.2/lib/active_support/dependencies.rb:240:in 
    `require' from 
    /Users/macbookpro/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.1.2/lib/rails/commands.rb:28:in 
    `<top (required)>' from script/rails:6:in `require' from 
    script/rails:6:in `<main>'

我很迷惑，因为我没有之前创建一个数据库（但它显示出它的存在）。而现在我甚至不能生成狂欢网站。我研究了这个问题几天，我还没有找到一个匹配解决方案。这是我的Gemfile看起来像

源“http://rubygems.org”

gem 'rails', '3.1.2' 

# Bundle edge Rails instead: 
# gem 'rails',  :git => 'git://github.com/rails/rails.git' 

gem 'mysql2' 


# Gems used only for assets and not required 
# in production environments by default. group :assets do gem 'sass-rails', '~> 3.1.5.rc.2'  gem 'coffee-rails', '~> 3.1.1' 
gem 'uglifier', '>= 1.0.3' end 

gem 'jquery-rails' 

# To use ActiveModel has_secure_password 
# gem 'bcrypt-ruby', '~> 3.0.0' 

# Use unicorn as the web server 
# gem 'unicorn' 

# Deploy with Capistrano 
# gem 'capistrano' 

# To use debugger 
# gem 'ruby-debug19', :require => 'ruby-debug' 

group :test do # Pretty printed test output gem 'turn', '0.8.2', 
:require => false 

gem 'spree' , '0.70.2' 

end