# Need installation help **URL:** \ **Category:** Rails\ **Created:** [September 2, 2007, 6:51pm UTC](https://www.ruby-forum.com/t/need-installation-help/113604 "2007-09-02T18:51:36Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![dbbd](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/49beb7/32.png) [@dbbd](https://www.ruby-forum.com/u/dbbd)\ **Post date:** [September 2, 2007, 6:51pm UTC](https://www.ruby-forum.com/t/need-installation-help/113604/1 "2007-09-02T18:51:36Z")
I’ve installed RoR on Fedora Core 6, following closely the instructions on [http://www.digitalmediaminute.com/howto/fc4rails/#installROR](http://www.digitalmediaminute.com/howto/fc4rails/#installROR) When I try to launch RoR test app, I get an error: Cannot find gem for Rails ~\>1.2.3.0: Install the missing gem with ‘gem install -v=1.2.3 rails’, or change environment.rb to define RAILS\_GEM\_VERSION with your desired version. I get this either by “service lighttpd restart” or by simply # ruby public/dispatch.fcgi My config/environment.rb has RAILS\_GEM\_VERSION = ‘1.2.3’ unless defined? RAILS\_GEM\_VERSION I tried to run with RAILS\_GEM\_VERSION=1.2.3.0 ruby public/dispatch.fcgi but am getting the same error. The rails install ran just fine: # gem install rails --include-dependencies Attempting local installation of ‘rails’ Local gem file not found: rails\*.gem Attempting remote installation of ‘rails’ Updating Gem source index for: [http://gems.rubyforge.org](http://gems.rubyforge.org) Successfully installed rails-1.2.3 Successfully installed rake-0.7.3 Successfully installed activesupport-1.4.2 Successfully installed activerecord-1.15.3 Successfully installed actionpack-1.13.3 Successfully installed actionmailer-1.3.3 Successfully installed actionwebservice-1.2.3 Installing RDoc documentation for rake-0.7.3… Installing RDoc documentation for activesupport-1.4.2… Installing RDoc documentation for activerecord-1.15.3… Installing RDoc documentation for actionpack-1.13.3… Installing RDoc documentation for actionmailer-1.3.3… Installing RDoc documentation for actionwebservice-1.2.3… rubygems-0.9.1-1.fc6 I have installed everything possible using yum, including rubygems I’ve installed RoR on Fedora Core 6, following closely the instructions on [http://www.digitalmediaminute.com/howto/fc4rails/#installROR](http://www.digitalmediaminute.com/howto/fc4rails/#installROR) When I try to launch RoR test app, I get an error: Cannot find gem for Rails ~\>1.2.3.0: Install the missing gem with ‘gem install -v=1.2.3 rails’, or change environment.rb to define RAILS\_GEM\_VERSION with your desired version. I get this either by “service lighttpd restart” or by simply # ruby public/dispatch.fcgi My config/environment.rb has RAILS\_GEM\_VERSION = ‘1.2.3’ unless defined? RAILS\_GEM\_VERSION I tried to run with RAILS\_GEM\_VERSION=1.2.3.0 ruby public/dispatch.fcgi but am getting the same error. The rails install ran just fine: # gem install rails --include-dependencies Attempting local installation of ‘rails’ Local gem file not found: rails\*.gem Attempting remote installation of ‘rails’ Updating Gem source index for: [http://gems.rubyforge.org](http://gems.rubyforge.org) Successfully installed rails-1.2.3 Successfully installed rake-0.7.3 Successfully installed activesupport-1.4.2 Successfully installed activerecord-1.15.3 Successfully installed actionpack-1.13.3 Successfully installed actionmailer-1.3.3 Successfully installed actionwebservice-1.2.3 Installing RDoc documentation for rake-0.7.3… Installing RDoc documentation for activesupport-1.4.2… Installing RDoc documentation for activerecord-1.15.3… Installing RDoc documentation for actionpack-1.13.3… Installing RDoc documentation for actionmailer-1.3.3… Installing RDoc documentation for actionwebservice-1.2.3… I have installed everything possible using yum, including rubygems-0.9.1-1.fc6 I’d appreciate any ideas. Dan ---
**Author:** ![dbbd](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/49beb7/32.png) [@dbbd](https://www.ruby-forum.com/u/dbbd)\ **Post date:** [September 2, 2007, 7:34pm UTC](https://www.ruby-forum.com/t/need-installation-help/113604/2 "2007-09-02T19:34:44Z")
maybe Rails test app depends on 1.2.3.0. Try to create an app: rails testapp cd testapp/ && ./script/server then start your browser and point it to [http://0.0.0.0:3000](http://0.0.0.0:3000) ---
**Author:** ![dbbd](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/49beb7/32.png) [@dbbd](https://www.ruby-forum.com/u/dbbd)\ **Post date:** [September 2, 2007, 7:39pm UTC](https://www.ruby-forum.com/t/need-installation-help/113604/3 "2007-09-02T19:39:45Z")
I’ve tried to gem install -v 1.2.2 rails and it started working. I guess there’s a bug in gem 1.2.3 Thanks, Dan