From: Intransition Date: 2010-05-07T14:18:17+09:00 Subject: Re: rdoc/ri issue On May 6, 8:50 pm, Eric Hodel wrote: > 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. Sure did. Tried it again to be sure: $ sudo gem install rdoc-data To install ri data for RDoc 2.5+ run: rdoc-data Successfully installed rdoc-data-2.5.3 1 gem installed Installing ri documentation for rdoc-data-2.5.3... Installing RDoc documentation for rdoc-data-2.5.3... $ sudo rdoc-data --install I get the same result.