From: Sonja Elen Kisa Date: 2010-07-29T12:01:05+09:00 Subject: undefined method `each' for (installing gem) I frequently get this error. Halp? C:\Documents and Settings\Owner\My Documents\My Dropbox\Code>gem install sinatra Successfully installed sinatra-1.0 1 gem installed Installing ri documentation for sinatra-1.0... Updating ri class cache with 2857 classes... Installing RDoc documentation for sinatra-1.0... ERROR: While generating documentation for sinatra-1.0 ... MESSAGE: Error while evaluating C:/Ruby191/lib/ruby/gems/1.9.1/gems/rdoc-2 .3.0/lib/rdoc/generator/template/darkfish/classpage.rhtml: undefined method `eac h' for # (at "r\">Namespace\n\t\t\t\t