在 Windows 上使用 Rails 3 安装 Mongoid 时遇到问题

Question

在我的 Gemfile 中：

gem "mongoid", "~> 2.3"
gem "bson_ext", "~> 1.4"

当我运行 bundle install 时，我收到以下错误：

Bundler could not find compatible versions for gem "activemodel":
  In Gemfile:
    mongoid (~> 2.3) x86-mingw32 depends on
      activemodel (~> 3.1) x86-mingw32

    rails (= 3.0.6) x86-mingw32 depends on
      activemodel (3.0.6)

我已尝试将版本指向 github，正如其他一些帖子中所建议的那样，但是当我这样做并运行 bundle install 时，我收到另一个错误：

Fetching http://github.com/mongoid/mongoid.git
C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/source.rb:579:in
``': No such file or directory - git clone "http://github.com/mongoid/mongoid.gi
t" "C:/Ruby192/lib/ruby/gems/1.9.1/cache/bundler/git/mongoid-96bbbaf83f2d1e3487e
c2c95b9e5148015a7a346" --bare --no-hardlinks (Errno::ENOENT)
        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/sour
ce.rb:579:in `git'
        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/sour
ce.rb:653:in `cache'
        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/sour
ce.rb:551:in `specs'
        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/defi
nition.rb:356:in `block in converge_locked_specs'
        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/defi
nition.rb:345:in `each'
        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/defi
nition.rb:345:in `converge_locked_specs'
        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/defi
nition.rb:143:in `resolve'
        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.21/lib/bundler/defi
nition.rb:90:in `specs'

感谢任何提示。谢谢！

Answer 1

如果我没记错的话，bson_ext 需要在本地构建。这意味着您必须以某种方式在 Windows 上构建它。错误指向x86-mingw32，可以从here下载

您需要它的原因是因为有几个库依赖于平台。希望这能让您朝着正确的方向前进。