将 Ruby on Rails 从版本 3.2.13 升级到 4.0.0 时遇到问题

对于我的应用程序，我正在尝试从版本升级 Ruby on Rails3.2.13 to 4.0.0我在安装/更新一些 gem（通过使用 Bundler）时遇到了麻烦，特别是全球化3 https://github.com/svenfuchs/globalize3宝石。我正在运行 Ruby2.0.0-p247.

鉴于我的Gemfile is:

gem 'rails', '4.0.0'

gem 'globalize3', github: 'svenfuchs/globalize3', branch: 'rails4'

gem 'delayed_job', :git => 'git://github.com/collectiveidea/delayed_job.git', :branch => 'master'
gem 'delayed_job_active_record', :git => 'git://github.com/collectiveidea/delayed_job_active_record.git', :branch => 'master'

# Added these gems to help with the transition to rails4:
gem 'protected_attributes'
gem 'rails-observers'
gem 'actionpack-page_caching'
gem 'actionpack-action_caching'
gem 'activerecord-deprecated_finders'

当我运行bundle install终端窗口中的命令

然后我得到以下输出：

Updating git://github.com/svenfuchs/globalize3.git
Fetching gem metadata from https://rubygems.org/.......
Fetching gem metadata from https://rubygems.org/..
Resolving dependencies...
Bundler could not find compatible versions for gem "activerecord":
  In Gemfile:
    globalize3 (>= 0) ruby depends on
      activerecord (~> 3.0) ruby

    delayed_job_active_record (>= 0) ruby depends on
      activerecord (4.0.0)

Bundler could not find compatible versions for gem "rails":
  In Gemfile:
    globalize3 (>= 0) ruby depends on
      rails (~> 3) ruby

    rails (4.0.0)

当我运行bundle update终端窗口中的命令

然后我得到以下输出：

Updating git://github.com/collectiveidea/delayed_job.git
Updating git://github.com/collectiveidea/delayed_job_active_record.git
Updating git://github.com/svenfuchs/globalize3.git
Fetching gem metadata from https://rubygems.org/.......
Fetching gem metadata from https://rubygems.org/..
Resolving dependencies...
Bundler could not find compatible versions for gem "rails":
  In Gemfile:
    globalize3 (>= 0) ruby depends on
      rails (~> 3) ruby

    rails (4.0.0)

Bundler could not find compatible versions for gem "railties":
  In Gemfile:
    globalize3 (>= 0) ruby depends on
      railties (~> 3.0) ruby

    coffee-rails (~> 4.0.0) ruby depends on
      railties (4.0.0)

Bundler could not find compatible versions for gem "actionpack":
  In Gemfile:
    rails (= 4.0.0) ruby depends on
      actionpack (= 4.0.0) ruby

    actionpack-action_caching (>= 0) ruby depends on
      actionpack (4.0.0.rc2)

我该如何解决这个问题？是个globalize3gem 真的兼容 Ruby on Rails 4 吗？是否建议等待升级到 Ruby on Rails 4？

Note: 我看到了#415 升级到 Rails 4 http://railscasts.com/episodes/415-upgrading-to-rails-4我和railscast在网上进行了很多搜索（最合理的讨论是“Globalize3 不适用于 Rails4 https://github.com/globalize/globalize/issues/196”）关于这个问题，但我仍然遇到麻烦。

The globalize3宝石已更名globalize http://rubygems.org/gems/globalize主版本号现在对应于 ActiveRecord 的相应版本（AR3 为 3.x，AR4 为 4.x）。

因此，您需要做的就是将其放入 Gemfile 中，并且您不应该遇到任何冲突：

gem 'globalize', '~> 4.0.0.alpha.2'

另请参阅github 存储库 https://github.com/globalize/globalize更多细节。