I'm running Ruby 1.9.2 and Rails 3.0.0 in WinXP. I ran gem install nifty-generators from inside a new project directory. It said the gem, version 0.4.2, was successfully installed but there was an error installing ri and rdoc, so I ran the same command again but with the --no-ri --no-rdoc switches. Now it appears nifty_generators is installed with no errors, and it shows up in my gem list, but when I run rails g nifty:layout it says the nifty:layout generator wasn't found. rails g nifty_layout also doesn't work. Anyone has ideas? Thanks!

EDIT: Outputs as requested:

C:\Documents\Prgm>ruby -v
ruby 1.9.2p0 (2010-08-18) [i386-mingw32]

I'm running XP, so don't have which, but ruby.exe is in C:\Ruby192\bin.

C:\Documents\Prgm>gem env
RubyGems Environment:
  - RUBYGEMS VERSION: 1.3.7
  - RUBY VERSION: 1.9.2 (2010-08-18 patchlevel 0) [i386-mingw32]
  - INSTALLATION DIRECTORY: C:/Ruby192/lib/ruby/gems/1.9.1
  - RUBY EXECUTABLE: C:/Ruby192/bin/ruby.exe
  - EXECUTABLE DIRECTORY: C:/Ruby192/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86-mingw32
  - GEM PATHS:
     - C:/Ruby192/lib/ruby/gems/1.9.1
     - C:/Documents and Setti开发者_如何学Gongs/Linh/.gem/ruby/1.9.1
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
  - REMOTE SOURCES:
     - http://rubygems.org/

C:\Prgm\Survey_Manager>rails generate
Usage: rails generate GENERATOR [args] [options]

General options:
  -h, [--help]     # Print generator's options and usage
  -p, [--pretend]  # Run but do not make any changes
  -f, [--force]    # Overwrite files that already exist
  -s, [--skip]     # Skip files that already exist
  -q, [--quiet]    # Suppress status output

Please choose a generator below.

Rails:
  controller
  generator
  helper
  integration_test
  mailer
  migration
  model
  observer
  performance_test
  plugin
  resource
  scaffold
  scaffold_controller
  session_migration
  stylesheets

Also, rails g is shorthand for rails generate in Rails 3. See e.g. here: http://railscasts.com/episodes/216-generators-in-rails-3.

I have almost the same configuration as you, @Anita (win XP, rails 3 and ruby 1.9.3), and rails g nifty:layout works pretty well for me.

Make sure that you're running rails g command from the root directory of your app (i.e. from the directory where Gemfile is located). Also, make sure that your Gemfile contains this line: gem 'nifty-generators'.

Please provide the output of the following commands so we could try and help you:

• ruby -v
• which ruby
• gem env
• rails generate

Also, note that rails g nifty_layout should not work as it's not the right syntax.

Everything seems alright as far as I can see. would you be able to install another gem with a generator, such as paperclip and see if it's add to your generator list. as well could it be possible that you have more than one version of rails/ruby installed ?

Quoted from the nifty generators github page.

Rails 3

To use Nifty Generators with Rails 3 you will need to include it in your Gemfile.

gem "nifty-generators"

The generators use a colon as the separator instead of an underscore.

rails g nifty:layout

The Rails 3 support is still in early development, please report any issues you find.