From: "M. Norton" <remillard@...>
Date: 2010-01-01T09:35:04+09:00
Subject: Re: Getting Started w Ruby on MacOSX -- ri/RDoc error

I did finally figure it out so I will document the answer here in case
it helps someone else.

Somewhere along the line with installing ruby, rails, and other gems,
the local ri cache was created and owned by root.  I'm not entirely
sure why, but that explained the lack of permissions.  If you get
errors similar to what I described above, check your local directory
"ls -al" and look to see if root owns .ri1.9/.  Blow that away and
then rerun ri.  It'll rebuild the cache and hopefully be owned by your
own self.

Hope this helps.

All the best,
Mark Norton