Newbie Four Days on Rails

Rails
1

Hi all,

Having successfully gone through Bill W.'s Tutorial ‘Rollining with
Ruby on [Instant] Rails’
I decided to tackle John McCreesh’s ‘Four Days on Rails’ Tutorial.

I changed the Rails version as recommended in the tutorial.

All went well until I entered the following command:-
ruby script/generate model category

I got:-

C:\InstantRails\rails_apps\ToDo>ruby script/generate model category
c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:149:in activate': can't activate act ivesupport (= 1.0.4), already activated activesupport-1.3.1] (Gem::Exception) from c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:37:inrequire_gem_with_
options’
from c:/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:31:in
require_gem' from ./script/../config/../config/environment.rb:57 from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:inre
quire’
from
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_suppo
rt/dependencies.rb:147:in require' from c:/ruby/lib/ruby/gems/1.8/gems/rails-1.1.2/lib/commands/generate.rb :1 from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:inre
quire’
from
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_suppo
rt/dependencies.rb:147:in `require’
from script/generate:3

Can somebody please point me as to what might be going on here?

Thanks in advance.

Stephen.

2

It looks like you’re using an older version of Rails, or, more
specifically, ActiveSupport. I’m not sure how to fix that (can you
install older versions of rails and dependencies?), but I hope that’s
at least a starting point. :confused: