mello$ rhc
/Users/mello/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find rhc (>= 0) amongst [actionmailer-3.1.3, actionpack-3.1.3, activemodel-3.1.3, activerecord-3.1.3, activeresource-3.1.3, activesupport-3.1.3, addressable-2.2.6, ansi-1.4.1, arel-2.2.1, builder-3.0.0, bundler-1.0.21, coffee-rails-3.1.1, coffee-script-2.2.0, coffee-script-source-1.2.0, erubis-2.7.0, execjs-1.2.13, gravatar_image_tag-1.0.0.pre2, heroku-2.17.0, hike-1.2.1, i18n-0.6.0, jquery-rails-1.0.19, json-1.6.4, launchy-2.0.5, mail-2.3.0, mime-types-1.17.2, multi_json-1.0.4, polyglot-0.3.3, prototype-rails-3.1.0, rack-1.3.6, rack-cache-1.1, rack-mount-0.8.3, rack-ssl-1.3.2, rack-test-0.6.1, rails-3.1.3, railties-3.1.3, rake-0.9.2.2, rdoc-3.12, rest-client-1.6.7, rubygems-update-1.8.13, rubyzip-0.9.5, sass-3.1.12, sass-rails-3.1.5, sprockets-2.0.3, sqlite3-1.3.5, term-ansicolor-1.0.7, thor-0.14.6, tilt-1.3.3, treetop-1.4.10, turn-0.8.2, tzinfo-0.3.31, uglifier-1.2.1] (Gem::LoadError)
	from /Users/mello/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
	from /Users/mello/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems.rb:1202:in `gem'
	from /Users/mello/.rvm/rubies/ruby-1.9.2-p290/bin/rhc:18:in `<main>'