As I wrote previously, rubycocoa did not work properly with Mavericks. Well, I’m very pleased to discover that it’s been fixed, with a new version of rubycocoa available at SourceForge. Before: % ./testRubyCocoa.rb/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require’: cannot load such file — osx/cocoa … Continue reading rubycocoa + rvm + Mavericks fixed!