title: RubyGems - my system can't seem to find any remote gems to install
body: <p>Trying to install the 'less' gem.  I type <code>sudo gem install less</code> as instructed at <a href="http://lesscss.org/" rel="nofollow noreferrer">http://lesscss.org/</a>, and I get the following error:</p>
  
  <pre><code>ERROR:  While executing gem ... (Gem::GemNotFoundException)
      Could not find less (&gt; 0) in any repository
  </code></pre>
  
  <p>Alright, so I figure maybe I just need to update RubyGems.  Trying 'gem update --system' gets me</p>
  
  <pre><code>Updating RubyGems...
  Attempting remote update of rubygems-update
  ERROR:  While executing gem ... (Gem::InstallError)
      rubygems-update requires builder &gt;= 0
  </code></pre>
  
  <p>Arrgh.  Alright, then let's try 'sudo gem install builder':</p>
  
  <pre><code>ERROR:  While executing gem ... (Gem::GemNotFoundException)
      Could not find builder (&gt; 0) in any repository
  </code></pre>
  
  <p>Seems that no matter what gem I try to install, it can't be found in any repository.  I check my environment, and rubyforge is listed:</p>
  
  <pre><code>RubyGems Environment:
    - VERSION: 0.9.4 (0.9.4)
    - INSTALLATION DIRECTORY: /usr/local/lib/ruby/gems/1.8
    - GEM PATH:
       - /usr/local/lib/ruby/gems/1.8
    - REMOTE SOURCES:
       - http://gems.rubyforge.org
  </code></pre>
  
  <p>Any idea what's going on?   I'm on OSX 10.4, and I installed Ruby 1.8.6 before this.</p>