Ruby Koans 与 Ruby 2.0.0 不兼容？

Question

成功升级到 Ruby 2.0.0 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:

rake
cd koans
/Users/jordanthornquest/.rvm/rubies/ruby-2.0.0-p0/bin/ruby path_to_enlightenment.rb
/Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:399:in `rescue in meditate': uninitialized constant EdgeCase::Sensei::AssertionError (NameError)
    from /Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:407:in `meditate'
    from /Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:470:in `block in walk'
    from /Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:481:in `block (3 levels) in each_step'
    from /Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:479:in `each'
    from /Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:479:in `block (2 levels) in each_step'
    from /Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:478:in `each'
    from /Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:478:in `each_with_index'
    from /Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:478:in `block in each_step'
    from /Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:476:in `catch'
    from /Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:476:in `each_step'
    from /Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:469:in `walk'
    from /Users/jordanthornquest/programming/ruby-koans/koans/edgecase.rb:491:in `block in <top (required)>'
rake aborted!
Command failed with status (1): [/Users/jordanthornquest/.rvm/rubies/ruby-2...]
/Users/jordanthornquest/programming/ruby-koans/Rakefile:90:in `block in <top (required)>'
/Users/jordanthornquest/.rvm/gems/ruby-2.0.0-p0/bin/ruby_noexec_wrapper:14:in `eval'
/Users/jordanthornquest/.rvm/gems/ruby-2.0.0-p0/bin/ruby_noexec_wrapper:14:in `<main>'
Tasks: TOP => default => walk_the_path

我今天还从 GitHub 安装了一个全新的 Koans 批处理，以确保这不是我的问题。都不适合我!它在 1.9.3 中仍然运行良好。可能值得注意的是，我还通过 RVM 安装了 Ruby 2.0。在这样做之前，我确保更新到最新的 RVM。

似乎是什么问题？

Answer 1

有一个解决此问题的拉取请求，但尚未被接受:https://github.com/neo/ruby_koans/pull/84

现在，您可以将 src/edgecase.rb 的第 149 行编辑为:

in_ruby_version("1.9", "2.0") do