From: Jim Weirich <jim@...>
Date: 2005-12-21T21:01:21+09:00
Subject: Re: problem with gem

Mohammad Khan wrote:
> Hello,
> 
> I am trying to make a gem package for one of my library that I am
> going to make avaiable soon. Problem is, I can successfully install my
> gem on the machine where I build the gem. But if I copy that gem to
> another machine and try to install it I get
> 
> [root@ruby-agi download]# gem install ruby-agi-0.0.3.gem
> Attempting local installation of 'ruby-agi-0.0.3.gem'
> ERROR:  Error installing gem ruby-agi-0.0.3.gem[.gem]: parse error on
> line 0, col 31: `!ruby/object:Gem::Specification '

Sounds like you built the gem on a Ruby 1.8.3 system and are trying to 
install it on a Ruby 1.8.2 system.  Version 1.8.3 has a backwards 
compatibility bug in the Yaml code such that the yaml produced on 1.8.3 
cannot be read on earlier systems.

Fortunately, I've heard rumours that 1.8.4 (out real soon now) will 
correct that bug.

--
-- Jim Weirich

-- 
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