From: Aaron Patterson <aaron@...>
Date: 2009-12-24T02:03:27+09:00
Subject: Re: Gems LoadError in Linux

On Thu, Dec 24, 2009 at 01:20:07AM +0900, Augusto Esteves wrote:
> Hello,
> 
> I'm new to Ruby and I wanna run a test a simple Gem in the latest
> Ubuntu. I've downloaded Ruby 1.9.1 and RubyGems, and the Gem I wanna
> test is NFC - which appears installed as a Local Gem after I did $ sudo
> gem install nfc..

What OS are you running on?  Also, can you provide the output of:

  ruby -v
  gem -v

Also the output of 'gem list nfc' might be helpful.

> The problem happens when I try to run my test code:
> 
> require 'nfc'
> 
> loop do
>   NFC.instance.find do |tag|
>     p tag
>   end
> end
> 
> Which errors with:
> `require': no such file to load -- nfc (LoadError)
> 
> After reading about Gems for a while, I found out that I also need to
> add
> require 'rubygems' to the beginning of the code, but that also gives me
> an error:
> 
> `require': no such file to load -- rubygems (LoadError)
> 
> What am I doing wrong? :/ Any help will be great.

Not sure.  This is strange.  You *should* be requiring rubygems at the
top of your program.  But you *shouldn't* be getting that error.  :-)

Hopefully the info you provide us with the output of the above commands
will help us track this down!

-- 
Aaron Patterson
http://tenderlovemaking.com/