rubygems - Ruby 找不到已安装的 gem

Question

我在这里有点不知所措。我在 OSX10.6 上，我的 gem 都搞砸了。我正在尝试使用的 gem 之一是 Hashie。我在互联网上环顾四周，似乎有几个人遇到了类似的问题，但他们的解决方案似乎都不适用于我的情况。谢谢你看。

我所有的 ruby​​ 脚本/gems 都安装在/opt/ruby-enterprise-1.8.7-2010.02 中:

Komputor:~$ which ruby gem irb rails
/opt/ruby-enterprise-1.8.7-2010.02/bin/ruby
/opt/ruby-enterprise-1.8.7-2010.02/bin/gem
/opt/ruby-enterprise-1.8.7-2010.02/bin/irb
/opt/ruby-enterprise-1.8.7-2010.02/bin/rails

并且安装了示例 gem、hashie(以及许多其他):

Komputor:~ $ gem list -l | wc -l
      67
Komputor:~ $ gem list | grep hashie
hashie (0.4.0)
Komputor:gems $ cd /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems
Komputor:gems $ ls | grep hashie
drwxr-xr-x  13 root  admin   442 Nov 24 17:13 hashie-0.4.0

然而，当我尝试从 irb 或脚本访问它们时，一切都失败了:

Komputor:~ $ irb
irb(main):001:0> require 'hashie'
LoadError: no such file to load -- hashie
    from (irb):1:in `require'
    from (irb):1
irb(main):002:0> 

一些环境变量:
gem 环境:

Komputor:gems $ gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 1.3.7
  - RUBY VERSION: 1.8.7 (2010-04-19 patchlevel 253) [i686-darwin10.4.0]
  - INSTALLATION DIRECTORY: /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8
  - RUBY EXECUTABLE: /opt/ruby-enterprise-1.8.7-2010.02/bin/ruby
  - EXECUTABLE DIRECTORY: /opt/ruby-enterprise-1.8.7-2010.02/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86-darwin-10
  - GEM PATHS:
     - /opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8
     - /Users/<snip>/.gem/ruby/1.8
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - http://rubygems.org/

$路径:

Komputor:gems $ echo $PATH
/sw/bin:/sw/sbin:/opt/ruby-enterprise-1.8.7-2010.02/bin:/Applications/android-sdk-1.5/tools:/usr/brlcad/bin:/usr/local/mysql-5.0.67-osx10.5-x86_64/bin:/opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/local/mongodb/bin:/sw/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/git/bin:/usr/X11/bin:/usr/X11R6/bin

我很乐意张贴任何用于调试的命令的输出。

感谢您的关注!

Answer 1

正如 Adam Vandenberg 指出的那样，在加载 gem 之前，您需要 require "rubygems"
某些框架可能会为您加载它，您可以在 .irbrc 中将其设置为自动加载。如果你喜欢