DeviseCreateUsers：migrating create_table（：users）rake aborted

Question

運行時遇到以下錯誤rake db:migrate --trace。我的rails版本 - rails 3.2.0。我試圖運行該項目​​。我是新手，紅寶石Ruby on Rails的

錯誤：

** Invoke db:migrate (first_time) 
** Invoke environment (first_time) 
** Invoke disable_rails_admin_initializer (first_time) 
** Execute disable_rails_admin_initializer 
** Execute environment 
** Invoke db:load_config (first_time) 
** Invoke rails_env (first_time) 
** Execute rails_env 
** Execute db:load_config 
** Execute db:migrate 
== **DeviseCreateUsers: migrating** ============================================== 
-- **create_table(:users)** 
**rake aborted! 
An error has occurred, all later migrations canceled: 
undefined method `database_authenticatable'** for #<ActiveRecord::ConnectionAdapte 
rs::TableDefinition:0x5d49098> 
E:/ruby projects/Hospitium Animal Hospital/db/migrate/20110904205556_devise_crea 
te_users.rb:4:in `block in up' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/connect 
ion_adapters/abstract/schema_statements.rb:160:in `create_table' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/connect 
ion_adapters/abstract_mysql_adapter.rb:422:in `create_table' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:450:in `block in method_missing' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:424:in `block in say_with_time' 
C:/Ruby193/lib/ruby/1.9.1/benchmark.rb:280:in `measure' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:424:in `say_with_time' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:444:in `method_missing' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:334:in `method_missing' 
E:/ruby projects/Hospitium Animal Hospital/db/migrate/20110904205556_devise_crea 
te_users.rb:3:in `up' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:358:in `up' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:396:in `block (2 levels) in migrate' 
C:/Ruby193/lib/ruby/1.9.1/benchmark.rb:280:in `measure' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:396:in `block in migrate' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/connect 
ion_adapters/abstract/connection_pool.rb:118:in `with_connection' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:377:in `migrate' 
C:in `migrate' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:704:in `block (2 levels) in migrate' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:761:in `call' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:761:in `ddl_transaction' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:703:in `block in migrate' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:684:in `each' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:684:in `migrate' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:554:in `up' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/migrati 
on.rb:535:in `migrate' 
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.0/lib/active_record/railtie 
s/databases.rake:153:in `block (2 levels) in <top (required)>' 
C:/Ruby193/lib/ruby/1.9.1/rake/task.rb:205:in `call' 
C:/Ruby193/lib/ruby/1.9.1/rake/task.rb:205:in `block in execute' 
C:/Ruby193/lib/ruby/1.9.1/rake/task.rb:200:in `each' 
C:/Ruby193/lib/ruby/1.9.1/rake/task.rb:200:in `execute' 
C:/Ruby193/lib/ruby/1.9.1/rake/task.rb:158:in `block in invoke_with_call_chain' 
C:/Ruby193/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize' 
C:/Ruby193/lib/ruby/1.9.1/rake/task.rb:151:in `invoke_with_call_chain' 
C:/Ruby193/lib/ruby/1.9.1/rake/task.rb:144:in `invoke' 
C:/Ruby193/lib/ruby/1.9.1/rake/application.rb:116:in `invoke_task' 
C:/Ruby193/lib/ruby/1.9.1/rake/application.rb:94:in `block (2 levels) in top_lev 
el' 
C:/Ruby193/lib/ruby/1.9.1/rake/application.rb:94:in `each' 
C:/Ruby193/lib/ruby/1.9.1/rake/application.rb:94:in `block in top_level' 
C:/Ruby193/lib/ruby/1.9.1/rake/application.rb:133:in `standard_exception_handlin 
g' 
C:/Ruby193/lib/ruby/1.9.1/rake/application.rb:88:in `top_level' 
C:/Ruby193/lib/ruby/1.9.1/rake/application.rb:66:in `block in run' 
C:/Ruby193/lib/ruby/1.9.1/rake/application.rb:133:in `standard_exception_handlin 
g' 
C:/Ruby193/lib/ruby/1.9.1/rake/application.rb:63:in `run' 
C:/Ruby193/bin/rake:32:in `<main>' 
Tasks: TOP => db:migrate 

我的GEM文件

source 'http://rubygems.org' 
gem 'rails', '3.2.0' 

# Bundle edge Rails instead: 
# gem 'rails', :git => 'git://github.com/rails/rails.git' 
gem "eventmachine", "1.0.0.beta.4.1" 
gem 'mysql2' 
gem 'devise' # Devise must be required before RailsAdmin 
gem 'rails_admin' 
gem 'nokogiri' 
gem 'mechanize' 
gem 'uuidtools' 
gem 'cancan' 
gem 'paperclip' 
gem 'aws-sdk', '~> 1.3.4' 
gem 'will_paginate' 
gem 'paper_trail' 
gem 'oauth' 
#gem 'twitter' 
gem 'rest-client' 
gem 'json' 
#gem 'libxml-xmlrpc' 
gem 'bitly' 
gem 'site_meta' 
gem 'meta_search' 
gem 'airbrake' 
gem 'spork', '~> 1.0rc' 
gem 'client_side_validations' 
gem 'jqplot-rails' 
gem 'asset_sync' 
gem 'gravatar_image_tag' 
gem 'best_in_place' 
gem 'juggernaut' 
gem 'jquery-rails' 
#gem 'less-rails-bootstrap' 
gem "spreadsheet", "0.6.5.8" 
gem 'to_xls' 
gem 'sanitize' 
gem 'redcarpet' 
gem 'rqrcode-rails3' 
gem 'octokit' 

# Gems used only for assets and not required 
# in production environments by default. 
group :assets do 
    gem 'sass-rails' 
    gem 'coffee-rails' 
    gem 'uglifier' 
    gem 'closure-compiler' 
end 

group :development do 
    gem 'metrical' 
end 

group :production do 
    gem 'home_run', :require=>'date' 
    #gem 'slim_scrooge', :git => "git://github.com/sdsykes/slim_scrooge.git" 
    gem 'dalli' 
    gem 'thin' 
    gem 'pg' 
    gem 'newrelic_rpm' 
    gem 'heroku' 
end 

gem "rspec-rails", :group => [:test, :development] 
group :test do 
    gem "factory_girl_rails" 
    gem "capybara" 
    #gem 'capybara-webkit' 
    gem 'shoulda-matchers' 
    gem 'cucumber-rails', :require => false 
    gem 'database_cleaner' 
    gem 'launchy' 
    gem 'email_spec' 
end 

# Use unicorn as the web server 
# gem 'unicorn' 

# Deploy with Capistrano 
# gem 'capistrano' 

---------------------------------------------------------------------------------------- 

按說Kaldybaev的解決方案，我想

E:\ruby projects\Hospitium Animal Hospital>rails g devise:install 
conflict config/initializers/devise.rb 
Overwrite E:/ruby projects/Hospitium Animal Hospital/config/initializers/devise. 
rb? (enter "h" for help) [Ynaqdh] h 
Y - yes, overwrite 
n - no, do not overwrite 
a - all, overwrite this and all others 
q - quit, abort 
d - diff, show the differences between the old and the new 
h - help, show this help 
Overwrite E:/ruby projects/Hospitium Animal Hospital/config/initializers/devise. 
rb? (enter "h" for help) [Ynaqdh] a 
force config/initializers/devise.rb 
identical config/locales/devise.en.yml 
=============================================================================== 

Some setup you must do manually if you haven't yet: 

1. Ensure you have defined default url options in your environments files. Her 
e 
is an example of default_url_options appropriate for a development environm 
ent 
in config/environments/development.rb: 

config.action_mailer.default_url_options = { :host => 'localhost:3000' } 

In production, :host should be set to the actual host of your application. 

2. Ensure you have defined root_url to *something* in your config/routes.rb. 
For example: 

    root :to => "home#index" 

3. Ensure you have flash messages in app/views/layouts/application.html.erb. 
For example: 

    <p class="notice"><%= notice %></p> 
    <p class="alert"><%= alert %></p> 

1. 如果要部署在Heroku上的Rails 3.1，您可能要設置：

   config.assets.initialize_on_precompile =假

   在配置/ application.rb中迫使你的應用程序無法訪問數據庫 或負載模式時預編譯您的資產。

   ============================================== =================================

   E：\ ruby​​ projects \ Hospitium Animal Hospital> rails g設計用戶 調用active_record 另一個遷移已命名add_devise_to_users：E：/ Ruby項目/ Hospiti UM動物醫院/ DB /遷移/ 20120518093709_add_devise_to_users.rb

   E：\ Ruby項目\ Hospitium動物醫院>耙分貝：遷移 == DeviseCreateUsers：遷移============================================= = - create_table（：users） rake中止！ 發生錯誤，其隨後所有的遷移取消：

   未定義的方法`database_authenticatable」爲＃

   任務：TOP =>分貝：遷移 （通過運行帶有--trace任務查看完整的跟蹤）

Answer 1

這似乎問題與回購當時，​​, 現在工作正常。

Answer 2

請重新運行這些命令，它會工作

rails g devise:install 

rails g devise user 

rake db:migrate