gem is no more

[rodeofly]

florian@florian-K70IO:~/workspace/apriori$ gem install --source http://gems.github.com jashmenn-apriori
Building native extensions. This could take a while...
ERROR: Error installing jashmenn-apriori:
ERROR: Failed to build gem native extension.

    "/home/florian/.rvm/rubies/ruby-1.9.3-p0/bin/ruby" -rubygems /home/florian/.rvm/gems/ruby-1.9.3-p0/gems/rake-0.

9.2.2/bin/rake RUBYARCHDIR=/home/florian/.rvm/gems/ruby-1.9.3-p0/gems/jashmenn-apriori-0.2.2/lib RUBYLIBDIR=/home/flori
an/.rvm/gems/ruby-1.9.3-p0/gems/jashmenn-apriori-0.2.2/lib
rake aborted!
cannot load such file -- config/requirements

(See full trace by running task with --trace)

Gem files will remain installed in /home/florian/.rvm/gems/ruby-1.9.3-p0/gems/jashmenn-apriori-0.2.2 for inspection.
Results logged to /home/florian/.rvm/gems/ruby-1.9.3-p0/gems/jashmenn-apriori-0.2.2/./gem_make.out