I'm having a little trouble using rio in irb ...

I installed rio 0.3.4 using rubygems, ie, gem install rio, which mostly
worked:

Attempting local installation of 'rio'
Successfully installed rio, version 0.3.4
Installing RDoc documentation for rio-0.3.4...
Could not find main page  RIO::Doc::SYNOPSIS
Could not find main page  RIO::Doc::SYNOPSIS
Could not find main page  RIO::Doc::SYNOPSIS
Could not find main page  RIO::Doc::SYNOPSIS

Then I fired up irb but got the following error:

irb(main):001:0> require 'rubygems'
=> false
irb(main):002:0> require 'rio'
Gem::LoadError: Could not find RubyGem extensions (>= 0.6.0)

        from c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:194:in
`report_activate_error'
        from c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:136:in
`activate'
        from c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:162:in
`activate'
        from c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:161:in `each'
        from c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:161:in
`activate'
        from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:23:in
`require'
        from (irb):2
irb(main):003:0>

Any help appreciated.

Neville

-----Original Message-----
From: rio4ruby [mailto:rio4ruby / rubyforge.org]
Sent: Wednesday, 7 September 2005 10:26 AM
To: ruby-talk ML
Subject: [ANN] Rio 0.3.4

New and Improved -- Rio 0.3.4

== Overview

Rio is a Ruby I/O convenience class wrapping much of the functionality
of IO, File and Dir. Rio also uses FileUtils, Tempfile, StringIO,
OpenURI, Zlib, and CSV to provide similar functionality using a simple
consistent interface. In addition to forwarding the interfaces provided
by IO, File, and Dir to an appropriate object, Rio provides a "grande"
interface that allows many common application-level I/O and file-system
tasks to be expressed succinctly.