From: Run Paint Run Run Date: 2010-10-18T04:08:54+09:00 Subject: [ruby-core:32835] [Ruby 1.9-Bug#3958] The Fiber instance method 'alive?' is not defined. Issue #3958 has been updated by Run Paint Run Run. You have to `require 'fiber'` first. ---------------------------------------- http://redmine.ruby-lang.org/issues/show/3958 ---------------------------------------- http://redmine.ruby-lang.org