From: Stephen Bannasch <stephen.bannasch@...>
Date: 2007-01-19T06:31:04+09:00
Subject: undefined method `refresh' after rubygem 0.9.1 upgrade

I upgraded RubyGems to 0.9.1  using Eric's instructions here:

   http://blog.segment7.net/articles/2007/01/18/rubygems-0-9-1

basically:

   gem update
   gem pristine --all

but now I get this error:

gem update sexp
Updating installed gems...
ERROR:  While executing gem ... (NoMethodError)
     undefined method `refresh' for #<Hash:0x1055db4>

I tried re-installing manually, downloading the archive and running  
ruby setup.rb all and get the same error.

system: macos 10.4.8, ruby 1.8.4 (2005-12-24) [i686-darwin8.6.1]
Anybody have a clue about what to do?