在Ruby1.9.3、Rails 3.2.7、教程应用程序中加载gem 'mysql2‘时出错

Question

我正试图通过诺尔·拉宾氏 --非常有希望的"掌握空间和时间与JavaScript。“之一--开始工作--其中一个障碍来自于代码上一次更新是在2012年9月，而生态系统已经向前发展。我认为，我的问题主要来自mysql数据库，它是用国产软件安装的(我相信默认情况下是最新版本)，以及拉普潘先生在12，0.3.11中使用的mysql2创业板版本。

我更新了Gemfile以反映mstwjs Gemfile.lock文件中的gem版本：

source 'http://rubygems.org'

gem 'rails',   '3.2.7'
gem 'devise',  '2.1.2'

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

gem 'mysql2',  '0.3.11'

# Asset template engines
group :assets do
  gem 'sass-rails',   '3.2.5'
  gem 'coffee-rails', '3.2.2'
  gem 'uglifier',     '1.2.6'
end

gem 'jquery-rails',       '2.0.2'
gem 'rails-backbone',     '0.7.2'
#gem 'sprockets_spacely'

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

# Deploy with Capistrano
# gem 'capistrano'

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

group :development do
  gem 'powder',           '0.1.8'
  gem 'awesome_print',    '1.0.2'
  gem 'annotate',         '2.5.0'
end

group :test, :development do
  #gem 'guard-rails-assets'
  #gem 'guard-jasmine-headless-webkit'
  gem 'jasmine-headless-webkit', '0.8.4'
  gem 'jasmine',                 '1.2.0'
  gem 'jasminerice',             '0.0.9'
  gem 'rspec-rails',             '2.11.0'
end

然后

$ rbenv local use 1.9.3
$ brew install mysql2
$ gem install mysql2 -v ‘0.3.11’
$ bundle install

到目前一切尚好!当我尝试运行mstwjs安装生成器时：

$ rake mstwjs:setup --trace

我遇到以下错误：

rake aborted!
There was an error while trying to load the gem 'mysql2'.
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/bundler-1.11.2/lib/bundler/runtime.rb:81:in `rescue in block (2 levels) in require'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/bundler-1.11.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `each'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `require'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/bundler-1.11.2/lib/bundler.rb:99:in `require'
/Users/benjaminunger/programming/rails/mstwjs/config/application.rb:7:in `<top (required)>'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
/Users/benjaminunger/programming/rails/mstwjs/Rakefile:5:in `<top (required)>'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/1.9.1/rake/rake_module.rb:25:in `load'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/1.9.1/rake/rake_module.rb:25:in `load_rakefile'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/1.9.1/rake/application.rb:501:in `raw_load_rakefile'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/1.9.1/rake/application.rb:82:in `block in load_rakefile'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/1.9.1/rake/application.rb:133:in `standard_exception_handling'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/1.9.1/rake/application.rb:81:in `load_rakefile'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/1.9.1/rake/application.rb:65:in `block in run'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/1.9.1/rake/application.rb:133:in `standard_exception_handling'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/lib/ruby/1.9.1/rake/application.rb:63:in `run'
/Users/benjaminunger/.rbenv/versions/1.9.3-p551/bin/rake:32:in `<main>'

有人知道我做错了什么吗？会非常感激你的洞察力。

Answer 1

通过进行以下更改，我成功地完成了回购工作：

# Gemfile
gem 'mysql2', '~> 0.3.20'

bundle update mysql2

# Create config/initializers/abstract_mysql2_adapter.rb
class ActiveRecord::ConnectionAdapters::Mysql2Adapter
    NATIVE_DATABASE_TYPES[:primary_key] = "int(11) auto_increment PRIMARY KEY"
end

bundle exec rake mstwjs:setup --trace

开始起作用了。