Ruby-Gem failing on nokia n800

I have a Nokia N800 that I am attempting to install Ruby on. I installed ruby and rubygems from http://pierre.droids-corp.org/maemo/. When attempting to do "gem update" or "gem install file.gem" I am getting t开发者_StackOverflow中文版he following message: "/usr/bin/gem:9:in 'require':no such file to load - - rubygems (LoadError) from /usr/bin/gem:9". Is there a known fix for this?

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It looks like you have to install RubyGems. Get it from RubyForge and run (as root, if appropriate and necessary)

ruby setup.rb