From: Jen <fluffy_bunny_1988@...>
Date: 2010-10-25T05:17:09+09:00
Subject: problem with ruby1.9.2 and gems on Debian

Hi,
I installed rubygems 1.3.7, then decided to upgrade from ruby1.8 to 
ruby1.9.2.

I forgot to uninstall rubygems before installing ruby1.9.2, as I didn't 
realise gems came with it.

Now I want to install some gems, but when I run 'gem install rails' I 
get the following error.

ERROR:  Loading command: install (LoadError)
     no such file to load -- zlib
ERROR:  While executing gem ... (NameError)
     uninitialized constant Gem::Commands::InstallCommand

Can I repare 'gems? If not should I remove ruby1.9.2, rubygems1.3.7 and 
start again?

It may be worth mentioning that I built these packages on Debian Lenny 
from source, and they are not in the database used by 'apt' etc.

I have tried removing all traces of Ruby and rubygems from the system, 
then rebuilding and installing ruby1.9.2

Thanks,
Jen.