Rails/Rack version issue

Jason Guiditta jason.guiditta at gmail.com
Tue Feb 23 22:23:08 UTC 2010


On Tue, Feb 23, 2010 at 5:17 PM, Jeroen van Meeuwen <kanarip at kanarip.com>wrote:

>
> On Tue, 23 Feb 2010 16:47:33 -0500, Jason Guiditta
> <jason.guiditta at gmail.com> wrote:
> > I am running Fedora 12 with Rails 2.3.4 installed.  Everything was
> working
> > fine, then last night I got an update from yum for Rack 1.1.  After
> > installing that, my working rails apps failed to load.  Creating a new
> test
> > app yielded:
> > /usr/lib/ruby/site_ruby/1.8/rubygems.rb:827:in `report_activate_error':
> > RubyGem version error: rack(1.1.0 not ~> 1.0.0) (Gem::LoadError)
> >
> > Has anyone else hit this issue?  If more detail is needed, let me know.
> >  Thanks,
> >
>
> I've seen this issue occur once or twice, but I'm not all too well versed
> in Ruby... is ~> even a valid comparison and if so, what does it imply
> exactly? I'm afraid this should have been '=>', which would require a patch
> on the rails stack.
>
> -- Jeroen
>
>
Good call, '=~' is valid, but '~>' does not appear to be, according to the
list here:
http://www.ruby-doc.org/docs/ProgrammingRuby/language.html#table_18.4
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