# Versions of rails **URL:** \ **Category:** Rails\ **Created:** [June 25, 2008, 10:40am UTC](https://www.ruby-forum.com/t/versions-of-rails/141385 "2008-06-25T10:40:46Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![torso](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/34f0e0/32.png) [@torso](https://www.ruby-forum.com/u/torso)\ **Post date:** [June 25, 2008, 10:40am UTC](https://www.ruby-forum.com/t/versions-of-rails/141385/1 "2008-06-25T10:40:46Z")
Hi I am using fedora 8 with Rails version 2.0.2. But i need to change to version 0.12.1. I have loaded 0.12.1 with gem install rails --version 0.12.1 It went fine and now i have 2.0.2 and 0.12.1 verisons, but when i try to add this linse to config/envrionment.rb # Require Rails libraries. require ‘rubygems’ require\_gem ‘activesupport’, ‘= 1.0.4’ require\_gem ‘activerecord’, ‘= 1.10.1’ require\_gem ‘actionpack’, ‘= 1.8.1’ require\_gem ‘actionmailer’, ‘= 0.9.1’ require\_gem ‘actionwebservice’, ‘= 0.7.1’ require\_gem ‘rails’, ‘= 0.12.1’ these lines are after line require File.join(File.dirname( **FILE** ), ‘boot’) and rebooting after those changes, rails will start but will give error : Rails application failed to start properly Can somebody help me to use version 0.12.1 in my application environment ---
**Author:** ![torso](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/34f0e0/32.png) [@torso](https://www.ruby-forum.com/u/torso)\ **Post date:** [June 25, 2008, 10:47am UTC](https://www.ruby-forum.com/t/versions-of-rails/141385/2 "2008-06-25T10:47:48Z")
On Jun 25, 9:31 am, torso [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > # Require Rails libraries. > > require ‘rubygems’ > require\_gem ‘activesupport’, ‘= 1.0.4’ > require\_gem ‘activerecord’, ‘= 1.10.1’ > require\_gem ‘actionpack’, ‘= 1.8.1’ > require\_gem ‘actionmailer’, ‘= 0.9.1’ > require\_gem ‘actionwebservice’, ‘= 0.7.1’ > require\_gem ‘rails’, ‘= 0.12.1’ If you’ve a recent version of rubygems require\_gem doesn’t exist any more. Also check your logs for more informative error messages. (and are you sure you need 0.12.1 rather than 1.2.1 ? 0.12.1 is positively ancient (3 years old or something)) Fred Fred ---
**Author:** ![torso](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/34f0e0/32.png) [@torso](https://www.ruby-forum.com/u/torso)\ **Post date:** [June 25, 2008, 11:20am UTC](https://www.ruby-forum.com/t/versions-of-rails/141385/3 "2008-06-25T11:20:39Z")
I’m doing this tutorial [http://www.rails4days.pwp.blueyonder.co.uk/Rails4Days.pdf](http://www.rails4days.pwp.blueyonder.co.uk/Rails4Days.pdf) .Thats why i need to use version 0.12.1. The tutorial uses scaffolding. In version 2.0.2 there’s no scaffolding, am I right? On Jun 25, 11:46 am, Frederick C. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![torso](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/34f0e0/32.png) [@torso](https://www.ruby-forum.com/u/torso)\ **Post date:** [June 25, 2008, 11:31am UTC](https://www.ruby-forum.com/t/versions-of-rails/141385/4 "2008-06-25T11:31:12Z")
On 25 Jun 2008, at 10:20, torso wrote: > I’m doing this tutorial [http://www.rails4days.pwp.blueyonder.co.uk/Rails4Days.pdf](http://www.rails4days.pwp.blueyonder.co.uk/Rails4Days.pdf) > .Thats why i need to use version 0.12.1. The tutorial uses > scaffolding. In version 2.0.2 there’s no scaffolding, am I right? The scaffolding is indeed different in 2.0.2. I really think you’re wasting your time going through a tutorial for a 3 year old version of rails. So much stuff has changed (eg 0.12 has no migrations, loads of functions have been deprecated/renamed (eg find\_all =\> find :all, @params =\> params) and lots of stuff has been added). Fred ---
**Author:** ![torso](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/34f0e0/32.png) [@torso](https://www.ruby-forum.com/u/torso)\ **Post date:** [June 25, 2008, 12:07pm UTC](https://www.ruby-forum.com/t/versions-of-rails/141385/5 "2008-06-25T12:07:37Z")
Yeah. I have wondering same thing, do I waste my time. But this is a school project so I have to do it. But do you know any good tutorials which is updated to newst version? On Jun 25, 12:30 pm, Frederick C. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)