gistfile1.txt

$ gem update --system
Updating RubyGems
Updating rubygems-update
Successfully installed rubygems-update-1.4.0
Updating RubyGems to 1.4.0
Installing RubyGems 1.4.0
/Users/david/.rvm/gems/ruby-1.9.2-p0/gems/rubygems-update-1.4.0/lib/rubygems/source_index.rb:62:in `installed_spec_directories': undefined method `path' for Gem:Module (NoMethodError)
	from /Users/david/.rvm/gems/ruby-1.9.2-p0/gems/rubygems-update-1.4.0/lib/rubygems/source_index.rb:52:in `from_installed_gems'
	from /Users/david/.rvm/gems/ruby-1.9.2-p0/gems/rubygems-update-1.4.0/lib/rubygems.rb:914:in `source_index'
	from /Users/david/.rvm/gems/ruby-1.9.2-p0/gems/rubygems-update-1.4.0/lib/rubygems/gem_path_searcher.rb:98:in `init_gemspecs'
	from /Users/david/.rvm/gems/ruby-1.9.2-p0/gems/rubygems-update-1.4.0/lib/rubygems/gem_path_searcher.rb:13:in `initialize'
	from /Users/david/.rvm/gems/ruby-1.9.2-p0/gems/rubygems-update-1.4.0/lib/rubygems.rb:873:in `new'
	from /Users/david/.rvm/gems/ruby-1.9.2-p0/gems/rubygems-update-1.4.0/lib/rubygems.rb:873:in `searcher'
	from /Users/david/.rvm/gems/ruby-1.9.2-p0/gems/rubygems-update-1.4.0/lib/rubygems.rb:495:in `find_files'
	from /Users/david/.rvm/gems/ruby-1.9.2-p0/gems/rubygems-update-1.4.0/lib/rubygems.rb:1034:in `load_plugins'
	from /Users/david/.rvm/gems/ruby-1.9.2-p0/gems/rubygems-update-1.4.0/lib/rubygems/gem_runner.rb:84:in `<top (required)>'
	from <internal:lib/rubygems/custom_require>:29:in `require'
	from <internal:lib/rubygems/custom_require>:29:in `require'
	from setup.rb:25:in `<main>'