自定义红宝石宝石上的奇怪LoadError

我有一个自定义宝石，我遇到了一个真正奇怪的LoadError，当我把它作为宝石安装并试图要求它在irb中。自定义红宝石宝石上的奇怪LoadError

一切工作正常与我的rspec测试项目文件夹内。这只在将它用作irb中的实际宝石时才会发生。

它引发LoadError异常的文件（/lib/mws/api/order_response.rb）确实存在。我尝试重命名文件并更新需要它的文件（/lib/mws.rb）。我试过重新创建文件，因为可能存在权限问题。什么都没有

如果我注释掉那个特定文件的require行，一切正常。没有什么特别的文件。还有4个其他文件几乎完全相同（*_response.rb）。

我觉得我正在服用疯狂的药丸。我必须忽略某些东西，但我一定不会看到它。

跟踪：

[email protected]:~$ irb 
1.9.3p194 :001 > require 'mws' 
LoadError: cannot load such file -- mws/api/order_response 
    from /Users/chris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require' 
    from /Users/chris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require' 
    from /Users/chris/.rvm/gems/ruby-1.9.3-p194/gems/mws-0.1.18/lib/mws.rb:14:in `<top (required)>' 
    from /Users/chris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:in `require' 
    from /Users/chris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:60:in `rescue in require' 
    from /Users/chris/.rvm/rubies/ruby-1.9.3-p194/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:35:in `require' 
    from (irb):1 
    from /Users/chris/.rvm/rubies/ruby-1.9.3-p194/bin/irb:16:in `<main>'

文件与要求（/lib/mws.rb）

require 'mws/base' 
require 'mws/connection' 
require 'mws/utility' 

require 'mws/api/seller' 
require 'mws/api/product' 
require 'mws/api/order' 
require 'mws/api/report' 

require 'mws/api/general_response' 
require 'mws/api/product_response' 
require 'mws/api/report_response' 
require 'mws/api/seller_response' 
require 'mws/api/order_response' # <--- the offending line 

module MWS 
    # @see Base#initialize MWS::Base for instantiation details. 
    # @return [Base] returns MWS::Base object. 
    def self.new(merchant_id, access_key, secret_key) 
    MWS::Base.new(merchant_id, access_key, secret_key) 
    end 
end 

# The below is for documentation generation purposes. 

# MWS is a wrapper for the Amazon Marketplace Web Service (MWS) API. 
module MWS 
    # API handles all the Amazon MWS API specific stuff. 
    module API 
    end 
    # Utilities contains various functions needed throughout MWS. Utilities is a mixin to multiple classes. 
    module Utilities 
    end 
end

文件，我需要（/lib/mws/api/order_response.rb）：

module MWS 
    module API 

    # Class for parsing Amazon's XML responses into managable objects. 
    class OrderResponse 

     # Include GeneralResponse instance methods as class methods 
     extend GeneralResponse 

    end 
    end 
end

我的文件结构

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