Updating Broken Rubygems to 1.0.1 on Ubuntu 7.10 Gusty 1

Posted by unixmonkey on December 21, 2007

If you tried to update rubygems today like me, its possible you got hit with a nasty error message running gem after the successful update to rubygems-1.0.1.

root@localhost ~:#gem -v
/usr/bin/gem:23: uninitialized constant Gem::GemRunner (NameError)

gem_runner needs loading, so lets fix that by adding a require at the top of/usr/local/lib/site-ruby/1.8/rubygems.rb

...
require 'rubygems/rubygems_version'
require 'rubygems/defaults'
require 'rubygems/gem_runner' ## add this line
require 'thread'
...

There we go, now lets try:

root@localhost ~:# gem -v
1.0.1

Hooray! Working rubygems!

Update:

I found this is due to a problem with just the apt packages, and re-downloading and installing the tar.gz from rubyforge will also solve the problem.

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