ruby-on-rails – 找不到’devise_install’生成器 – Rails 2.3

这是我遇到的错误：

devise > script/generate devise_install
Couldn't find 'devise_install' generator

我的配置文件中指定了Devise和Warden gems：

config.gem 'warden',:version => '0.10.7'
config.gem 'devise',:version => '1.0.8'

宝石安装：

devise > rake gems 
 - [I] warden = 0.10.7
    - [R] rack >= 1.0.0
 - [I] devise = 1.0.8
    - [I] warden ~> 0.10.3
       - [R] rack >= 1.0.0
I = Installed
F = Frozen
R = Framework (loaded before rails starts)

看看发电机的列表,我没有看到Devise的任何东西：

devise > script/generate
Installed Generators
  Rubygems: cucumber,facebook,facebook_controller,facebook_publisher,facebook_scaffold,feature,integration_spec,publisher,rspec,rspec_controller,rspec_model,rspec_scaffold,session,xd_receiver
  Builtin: controller,helper,integration_test,mailer,metal,migration,model,observer,performance_test,plugin,resource,scaffold,session_migration

任何线索？