Bug #2434: Ruby gem update --system /gem install [any_gem_name] ERROR
http://redmine.ruby-lang.org/issues/show/2434

Author: Sergueï Cambour
Status: Open, Priority: Normal
ruby -v: 1.8.6, 1.8.7

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:
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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:~$


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