From: Max Russell <thedossone@...>
Date: 2006-09-27T05:20:46+09:00
Subject: Re: Cookbook example - uninitialized constant

Max Russell wrote:
> Paul Lutus wrote:
>> Max Russell wrote:
>> 
>>> Interestingly I've tried this usign IRB on a Windows machine and can run
>>> the functionality, however if I try the same script executed from file,
>>> I get the uninitialized constant error.
>> 
>> Possibly there are two or more different versions of Ruby on your 
>> machine,
>> and each is activated in different circumstances. Or the IRB invocation
>> differs in some subtle way from that in the source file.
> 
> 
> I've just checked this out:
> 
> Ruby 1.8.4
> Gem 0.9.0
> Blinkenlights 0.0.4
> 
> I've made sure that my system is consistent with only 1.8.x versions of 
> Ruby and libraries, so this one confuses me.


Aha! More interesting stuff-

trying this out again on my Ubuntu box

it echos out the version if I do gem list | grep blinken
and if I list my local gems, I can see it in there,

however

going in through IRB and trying what I could do with the Windows box I 
find:

irb(main):001:0> require 'blinkenlights'
LoadError: no such file to load -- blinkenlights
        from (irb):1:in `require'
        from (irb):1


So why would gem report that the gem is there, but IRB not think it 
installed?

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