问题描述
我安装插件 open_id_authentication 并出现此错误:
I install plugin open_id_authentication and have this error:
/usr/lib/ruby/gems/1.9.1/gems/activesupport-3.0.0.beta/lib/active_support/dependencies.rb:167:in `require': no such file to load -- rack/openid (LoadError)
当我尝试启动 rails server实际上，我的系统中安装了 rack-openid，我可以从 irb 加载它:
when I try to start rails serverActually, rack-openid installed in my system and i can load it from irb:
irb(main):001:0> require 'rack/openid'
=> true
我尝试像使用 ruby-openid 一样向 Gemfile 添加 hack，但没有帮助:
I tried to add hack to Gemfile as I did with ruby-openid, but it did't help:
gem "ruby-openid", :require => "openid"
gem "rack-openid", :require => "rack/openid"
我也试过
gem "ruby-openid", :require => "rack/openid"
但是:
/usr/lib/ruby/gems/1.9.1/gems/bundler-0.9.7/lib/bundler/runtime.rb:38:in `require': no such file to load -- rack/openid (LoadError)
在 rails 2.3.5 应用程序中没有这个问题，我不明白为什么它会在 Rails 3 中发生.
In rails 2.3.5 app there isn't this problem and I can't understand why it happens in Rails 3.
推荐答案
问题是插件的init.rb最上面这段代码
The problem is this code at the top of the plugin's init.rb
if Rails.version < '3'
config.gem 'rack-openid', :lib => 'rack/openid', :version => '>=0.2.1'
end
Bundler 似乎没有满足 gem 要求，因此您缺少 rack-openid gem.
Bundler doesn't seem to pick up on the gem requirement so you are missing the rack-openid gem.
解决方案是将以下内容添加到您的 Gemfile 中以代替 ruby-openid.(rack-openid 依赖于 ruby-openid 但 gems 知道这一点，并会根据需要安装它)
The solution is to add the following to your Gemfile in place of ruby-openid. (rack-openid depends on ruby-openid but gems is aware of this and will install it as needed)
gem 'rack-openid', '>=0.2.1', :require => 'rack/openid'
不要忘记在更新 Gemfile 后运行 bundle install.
Don't forget to run bundle install after updating your Gemfile.
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