From: Eric Hodel <drbrain@...7.net>
Date: 2008-07-27T09:21:46+09:00
Subject: Re: Marshal version problem

On Jul 26, 2008, at 13:51 PM, Greg Willits wrote:
> I have a script that generates a serialized file of native data
> structures (hash of hashes & arrays and such).
>
> In a short spike script I wanted to load up a particular file, and  
> got a
> version error:
>     incompatible marshal file format (can't be read) (TypeError)
>     format version 4.8 required; 47.85 given
>
> Both scripts invoke the same ruby instance on my system (OS X)
>     #! /usr/local/bin/ruby
>
> printing RUBY_VERSION at the top of both scripts yields 1.8.6 in both.
>
> wassup widdat?

You're not loading a Marshal file, you're loading a file that starts  
with "/U"