From: Eric Hodel <drbrain@...7.net>
Date: 2007-12-21T07:40:29+09:00
Subject: Re: [ANN] RubyGems 1.0.0

On Dec 20, 2007, at 12:57 PM, Jim Morris wrote:
> Eric Hodel wrote:
>> == How can I get RubyGems?
>>
>> NOTE:  If you have installed RubyGems using a package you may want  
>> to install a
>> new RubyGems through the same packaging system.
>
> I get
>
> /usr/bin/gem:23: uninitialized constant Gem::GemRunner (NameError)
>
> when I try to run it.
>
> I am using ruby 1.8.6 on a Ubuntu system.

Did you see the NOTE?  I think this is your problem.