Ruby

=begin
No matter on which OS you are, - XP Family, XP Pro or Ubuntu 9.10. Noo matter if you have firewall 'hyper-sensitive' or proxy. When trying to do gem update --system or even when trying to install a new gem like 'gem install [gem_name] I always got the below error:
[code]
serge@serge-laptop:~$ sudo gem install heroku
ERROR: Error installing heroku:
invalid gem format for /usr/lib/ruby/gems/1.8/cache/heroku-1.4.gem

serge@serge-laptop:~$ ruby -v
ruby 1.8.7 (2009-06-12 patchlevel 174) [i486-linux]
serge@serge-laptop:~$ gem environment
RubyGems Environment:

• RUBYGEMS VERSION: 1.3.5
• RUBY VERSION: 1.8.7 (2009-06-12 patchlevel 174) [i486-linux]
• INSTALLATION DIRECTORY: /usr/lib/ruby/gems/1.8
• RUBY EXECUTABLE: /usr/bin/ruby1.8
• EXECUTABLE DIRECTORY: /usr/bin
• RUBYGEMS PLATFORMS:
  • ruby
  • x86-linux
• GEM PATHS:
  • /usr/lib/ruby/gems/1.8
  • /home/serge/.gem/ruby/1.8
• GEM CONFIGURATION:
  • :update_sources => true
  • :verbose => true
  • :benchmark => false
  • :backtrace => false
  • :bulk_threshold => 1000
  • :sources => ["http://gems.rubyforge.org/", "http://gemcutter.org", "http://gemcutter.org", "http://gemcutter.org"]
• REMOTE SOURCES:
  • http://gems.rubyforge.org/
  • http://gemcutter.org
  • http://gemcutter.org
  • http://gemcutter.org
    serge@serge-laptop:~$

[/code]
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