From: zuerrong Date: 2011-08-29T16:45:39+09:00 Subject: load mongo fail Hi I have installed mongo gem firstly, but when I require 'mongo' it get failed: irb(main):001:0> require 'rubygems' => true irb(main):002:0> require 'mongo' NameError: uninitialized constant Mongo from ./mongo.rb:5 from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require' from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:36:in `require' from (irb):2 This is my ruby and gem version: $ ruby -v ruby 1.8.7 (2009-06-12 patchlevel 174) [x86_64-linux] $ gem -v 1.8.10 Please help, thank you.