From brent at netomata.com  Thu Oct 28 14:05:55 2010
From: brent at netomata.com (Brent Chapman)
Date: Thu, 28 Oct 2010 14:05:55 -0700
Subject: [NCG-Users] Newest Ruby Facets library (v 2.9.0) breaks NCG
Message-ID: <AANLkTin6KkVfsdaNeXQVg8_-ZAO4nxeObv1Mew3Z5KWQ@mail.gmail.com>

It looks like the Ruby Facets library has been reorganized in its latest
release (version 2.9.0, released on 1 Sep 2010), and some of the code that
NCG depends upon (in particular, the "Dictionary" class) has been spun off
to a different library (the "Hashery" library; see
http://rubyworks.github.com/hashery).

The Dictionary class was included in Facets versions up to and including
2.8.4.  From some quick testing, it looks like everything works if you
install Facets 2.8.4.  Because of the way the Ruby 'require' mechanism
works, you can have this in _addition_ to Facets 2.9.0; the Ruby 'require'
system will look for a class in older versions of a library, if it can't
find the class in the current version.

So, the workaround, if you run into this problem, is to _also_ install
version 2.8.4 of Facets (note that this will NOT overwrite the later Facets
2.9.0 version on your system, so anything that depends on Facets 2.9.0
should be fine), via the following command as root:

        gem install -v 2.8.4 facets

Thanks to Bryan Wann <bwann at wann.net> , who reported this problem.

-Brent
--
Brent Chapman <brent at netomata.com>
Netomata, Inc. -- www.netomata.com
Making networks more cost-effective, reliable, and flexible by automating
network configuration
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