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From: Eric Wong <normalperson@yhbt.net>
Newsgroups: gmane.comp.lang.ruby.kgio.general
Subject: Re: Issue with kgio and ruby 2.1.2
Date: Fri, 9 May 2014 23:51:13 +0000
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Emmanuel Pinault <Emmanuel.Pinault@zumobi.com> wrote:
> Hi=20
>=20
> I upgraded from Ruby 2.1.0 to Ruby 2.1.2 . I have installed rails and u=
nicorn and both of the version of Ruby have the same gem installed=E2=80=A6
>=20
> unfortunately I see the following error with 2.1.2..  Works fine with 2=
.1.0
>=20
> ruby -Itest /some/minitest/file_test.rb
>=20
> /home/preseed/.gem/ruby/2.1.2/gems/kgio-2.9.2/lib/kgio.rb:21:in `method=
_defined?': -2.0000000001404037 is not a symbol (TypeError)

Hi, this looks like a binary compatibility problem.
The most likely suspect is some build/compiler options changed
between when you installed 2.1.0 and today.

I just checked Ruby 2.1.2 for accidental ABI changes (by looking
for header changes in the include/ directory) but did not find any.
I also just upgraded some of my machines without problems.

Can you try a clean build + install, perhaps with a different home
directory and user?  Thanks.