成功升级到Ruby2.0.0的稳定版本后(耶!)我决定继续我的Koans启蒙之路。但是，在koans文件夹中运行rake命令时，就像我通常做的那样，我收到此错误:rakecdkoans/Users/jordanthornquest/.rvm/rubies/ruby-2.0.0-p0/bin/rubypath_to_enlightenment.rb/Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:399:in`rescueinmeditate':uninitializedconstantEdgeCase::S