# Can't get gem to work **URL:** \ **Category:** Rails\ **Created:** [October 27, 2007, 4:59am UTC](https://www.ruby-forum.com/t/cant-get-gem-to-work/118458 "2007-10-27T04:59:34Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![alea](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/4da419/32.png) [@alea](https://www.ruby-forum.com/u/alea)\ **Post date:** [October 27, 2007, 4:59am UTC](https://www.ruby-forum.com/t/cant-get-gem-to-work/118458/1 "2007-10-27T04:59:34Z")
when I try to do gem install rails or gem install anything I get the following error: ERROR: While executing gem … (TypeError) can’t instantiate uninitialized class Anyone else seeing this and have any ideas? - thanks Johnny ---
**Author:** ![alea](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/4da419/32.png) [@alea](https://www.ruby-forum.com/u/alea)\ **Post date:** [October 27, 2007, 5:42am UTC](https://www.ruby-forum.com/t/cant-get-gem-to-work/118458/2 "2007-10-27T05:42:46Z")
I am having the same problem, just installed rubygems on Ubuntu Server 7.10 and am unable to install any gems, investigating error further. ---
**Author:** ![alea](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/4da419/32.png) [@alea](https://www.ruby-forum.com/u/alea)\ **Post date:** [October 27, 2007, 5:51am UTC](https://www.ruby-forum.com/t/cant-get-gem-to-work/118458/3 "2007-10-27T05:51:32Z")
I’ve tried this on several different of my servers and they are all producing this error now so perhaps there something problematic with [gems.rubyforge.org](http://gems.rubyforge.org)? ---
**Author:** ![alea](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/4da419/32.png) [@alea](https://www.ruby-forum.com/u/alea)\ **Post date:** [October 27, 2007, 6:05am UTC](https://www.ruby-forum.com/t/cant-get-gem-to-work/118458/4 "2007-10-27T06:05:33Z")
I can confirm that this is happening to me on OS X 10.5 Just installed, so I’m guessing it’s a problem upstream. ---
**Author:** ![alea](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/4da419/32.png) [@alea](https://www.ruby-forum.com/u/alea)\ **Post date:** [October 27, 2007, 6:17am UTC](https://www.ruby-forum.com/t/cant-get-gem-to-work/118458/5 "2007-10-27T06:17:48Z")
it seems to be working for me as well now though I’ve changed nothing at my end, so I’m guessing it was indeed a problem upstream. ---
**Author:** ![alea](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/4da419/32.png) [@alea](https://www.ruby-forum.com/u/alea)\ **Post date:** [October 27, 2007, 6:09am UTC](https://www.ruby-forum.com/t/cant-get-gem-to-work/118458/6 "2007-10-27T06:09:38Z")
Seems to be working now, I had to install libruby1.8-extras before it started working on my ubuntu install. ---
**Author:** ![alea](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/4da419/32.png) [@alea](https://www.ruby-forum.com/u/alea)\ **Post date:** [October 27, 2007, 4:12pm UTC](https://www.ruby-forum.com/t/cant-get-gem-to-work/118458/7 "2007-10-27T16:12:15Z")
On 10/27/07, Johnny P. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > it seems to be working for me as well now though I’ve changed > nothing at my end, so I’m guessing it was indeed a problem upstream. In a parallel conversation on the ruby-gems mailing list, it’s been discussed. There’s a new beta version of rubygems out there, and some folks had mistakenly uploaded some gems to the server with the beta version which wasn’t ready. This led to the same error, so I suspect that this was the problem. – Rick DeNatale My blog on Ruby [http://talklikeaduck.denhaven2.com/](http://talklikeaduck.denhaven2.com/)