Error putting Instant Rails on Windows 7

Question

I am trying to get my Instant Rails working on my Windows 7 laptop.

The error I keep getting when trying to access my site files are:

c:/rails/ruby/lib/site_ruby/1.8/rubygems.rb:779:in 'report_activate_error'
RubyGem version error: rack<1.1.0 not~> 1.0.1> <Gem::LoadError>
from c:/rails/ruby/lib/ruby.site_ruby/1.8/rubygems.rb:214:in  'activate'
from c:/rails/ruby/lib/ruby.site_ruby/1.8/rubygems.rb:1082:in 'gem'
from c:/depot/vendor/rails/actionpack/lib/action_controller.rb:34
from c://rails/ruby/lib/ruby.site_ruby/1.8/rubygems/custom_require.rb:31 in 'gem_original_require'
etc...

I have intalled Rubygems 1.3.7 and they work fine and when I run the test it works and the gem env shows that the 1.3.7 has been installed correctly.

What can I do to get this working?

Any prompt help would be VERY appreciated. Thanks

Answer 1

Your rack gem is outdated. Try to run gem update rack. Or, if you use Rails with Bundler, just run bundle install in the root of your project and it will do everything for you.

I decided to write a little manual about the Ruby 1.8.7 and Rails stable installation.

1. Download RubyInstaller 1.8.7 from here. During the installation, check the 'Add Ruby executables to your PATH' box. After the installation, don't forget to restard cmd. Then try running ruby -v and gem -v to check for installed Ruby 1.8.7 and RubyGems 1.3.7;
2. Install the latest stable Rails 2.3.8 using gem install rails --no-ri --no-rdoc; Check it using rails -v;
3. Create a new application using rails myapp;
4. Test it: script/server. That's it!

Answer 2

gem install rack -v 1.0.1