From: "Iñaki Baz Castillo" <ibc@...>
Date: 2011-02-28T19:30:47+09:00
Subject: Re: "gem NAME, VERSION" && "require NAME" fails due to version conflict

2011/2/28 Ryan Davis <ryand-ruby@zenspider.com>:
>> ~# gem list | grep nokogiri
>> nokogiri (1.4.4, 1.4.3)
>>
>> ~# irb
>> irb> gem "nokogiri", "=1.4.3"
>> true
>> irb> Nokogiri
>> NameError: uninitialized constant Object::Nokogiri
>> irb> require "nokogiri"
>> Gem::LoadError: can't activate nokogiri (= 1.4.4, runtime) for [],
>> already activated nokogiri-1.4.3 for []
>
> 10002 % gem list nokogiri
> nokogiri (1.4.4, 1.4.1)
> 10003 % irb
>>> require "rubygems"
> => true
>>> gem "nokogiri", "= 1.4.1"
> => true
>>> require "nokogiri"
> => true
>>> Nokogiri
> => Nokogiri
> 10004 % gem -v
> 1.5.3

Same fails in my system with RubyGem 1.3.7. Note however that I'm
using the gem command provided by the Debian/Ubuntu package. I will
check upgrading to 1.5.3.

Thanks.

-- 
Iñaki Baz Castillo
<ibc@aliax.net>