From: Eric Hodel <drbrain@...7.net>
Date: 2010-05-07T09:50:13+09:00
Subject: Re: rdoc/ri issue

On May 6, 2010, at 16:17, Intransition wrote:

> $ ri "String#to_s"
> /usr/lib/ruby/gems/1.8/gems/rdoc-2.5.8/lib/rdoc/ri/driver.rb:909:in
> `load_method': undefined method `[]' for nil:NilClass (NoMethodError)

Did you upgrade rdoc-data and reinstall it as well?  The earlier documentation sets had bugs, 2.5.3 is the latest.