From: Stefan Lang <langstefan@...>
Date: 2005-05-31T00:07:13+09:00
Subject: Re: Ruby from source and then from apt

On Monday 30 May 2005 16:45, Jonas Pfenniger wrote:
[...]
> The real problem is that I installed some gems like `og`, but irb can't
> find the include path to use it :
>
> irb(main):001:0> require 'og'
> LoadError: No such file to load -- og
> � � � � from (irb):1:in `require'
> � � � � from (irb):1
>
>
> irb(main):001:0> require_gem 'og'
> NoMethodError: undefined method `require_gem' for main:Object
> � � � � from (irb):1

You have to load rubygems before you can use installed gems.
   require 'rubygems'
   # The rubygems script has modified the require method and
   # defined the require_gem method.
   require 'og'
   # or require_gem 'og'

The reason for this is that gems aren't installed in standard
Ruby library pathes.

Stefan