# Install a ruby library with it's .gem file **URL:** \ **Category:** Ruby\ **Created:** [November 19, 2008, 11:54am UTC](https://www.ruby-forum.com/t/install-a-ruby-library-with-its-gem-file/153613 "2008-11-19T11:54:53Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![lyes](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/ed8c4c/32.png) [@lyes](https://www.ruby-forum.com/u/lyes)\ **Post date:** [November 19, 2008, 11:54am UTC](https://www.ruby-forum.com/t/install-a-ruby-library-with-its-gem-file/153613/1 "2008-11-19T11:54:53Z")
Hello everybody! May some one tell me how can I install a ruby library using it’s “.gem” file I’ve tried to proceed like this: gem install --install-dir PATH library\_name the output was like this Successfully installed library\_name.version 1 gem installed but when I call it from the irb with require, it display the not found error message thank you ---
**Author:** ![lyes](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/ed8c4c/32.png) [@lyes](https://www.ruby-forum.com/u/lyes)\ **Post date:** [November 19, 2008, 11:59am UTC](https://www.ruby-forum.com/t/install-a-ruby-library-with-its-gem-file/153613/2 "2008-11-19T11:59:00Z")
Just run gem as usual, but from the path where the library lies. “gem install yourlib” Then it will skip the online lookup. Regards, Florian G. ---
**Author:** ![lyes](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/ed8c4c/32.png) [@lyes](https://www.ruby-forum.com/u/lyes)\ **Post date:** [November 19, 2008, 11:59am UTC](https://www.ruby-forum.com/t/install-a-ruby-library-with-its-gem-file/153613/3 "2008-11-19T11:59:35Z")
On 2008.11.19., at 11:50, Lyes A. wrote: > the output was like this > Successfully installed library\_name.version > 1 gem installed That’s the way to go about it! > but when I call it from the irb with require, it display the not > found error > message require ‘rubygems’ before requiring the other gem doesn’t help? Cheers, Peter * * * [http://www.rubyrailways.com](http://www.rubyrailways.com) [http://scrubyt.org](http://scrubyt.org) ---
**Author:** ![lyes](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/ed8c4c/32.png) [@lyes](https://www.ruby-forum.com/u/lyes)\ **Post date:** [November 27, 2008, 1:51pm UTC](https://www.ruby-forum.com/t/install-a-ruby-library-with-its-gem-file/153613/4 "2008-11-27T13:51:49Z")
Ok! thank you , I will try it