Fixing: uninitialized constant Gem::GemRunner (NameError) – Ubuntu

After upgrading to the newest version of rails (2.2.2) I was getting this error:

administrator@shuttle:~/$ gem -v
/usr/bin/gem:10:Warning: Gem::manage_gems is deprecated and will be removed on or after March 2009.
/usr/bin/gem:23: uninitialized constant Gem::GemRunner (NameError)

Anytime I called “gem” I would get this error and could not get past.

Here is the fix

administrator@shuttle:~/$ sudo vim /usr/bin/gem

Change the top of the file to look like this:

require 'rubygems'
require 'rubygems/gem_runner'

Save and when you run this you should see this:

administrator@shuttle:~/$ gem -v

You should no longer get the error with running “gem”

23 replies on “Fixing: uninitialized constant Gem::GemRunner (NameError) – Ubuntu”

Well, that got gem working again…Sort of. When I try sudo gem install rails-1.2.5 it gives the “cannot find this package anywhere” crap again.

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