From: Dave Burt <dave@...>
Date: 2006-09-25T09:25:19+09:00
Subject: Re: Cookbook example - uninitialized constant

Max Russell wrote:
> Cross posting this from Ubuntu forums
> 
> I recently got the excellent Ruby cookbook and scanning through quickly 
> seized upon the Blinkenlights examples.
> 
> However I'm seeing something like this:
> /blinkenlights.rb
> /blinkenlights.rb:7: uninitialized constant BlinkenLights (NameError)
> from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in 
> `require'
> from ./blinkenlights.rb:4
> 
> 
> whenever I try to execute the script
> #!/usr/bin/ruby
> 
> require 'rubygems'
> require 'blinkenlights'
> 
> #Turn individual lights on and off
> BlinkenLights.open do |lights|
> ...
> 
> 
> 
> I'm on Ubuntu 6.06 LTS and I have the Blinkenlightsgem installed, I used 
> sudo gem install blinkenlights and can list my local gems and see it.
> 
> So why do I get this error?
> 

I'm a bit mystified and don't have a Ubuntu box, but I'll ask some
clarifying questions anyway. What versions of Ruby, Rubygems and
BlinkenLights are you running?

ruby --version
gem --version
gem list | grep blinken

Cheers,
Dave