From: Grant Schoep <lists@...>
Date: 2012-11-20T10:36:59+09:00
Subject: Re: some gems not working anymore

Odd, I'd verify your using the same gem that came with your build of 
ruby.

i.e. run these commands
which gem
which ruby

Make sure there from the same install(nominally that would be the same 
directory). You could be grabbing a ruby install from something else, 
and a gem binary a different source

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