Heroku错误 - 获取弃用错误，应用停止工作。

Question

我推送了我的最新代码，然后我的heroku应用程序停止工作。我检查了日志并收到错误消息。是否应该删除特定的宝石？这是一个数据库错误？

DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5) 
2012-05-23T00:08:04+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5) 
2012-05-23T00:08:11+00:00 app[web.1]: /app/app/controllers/admin/users_controller.rb:1:in `<top (required)>': superclass mismatch for class UsersController (TypeError) 

我跑了Heroku的运行耙分贝：迁移中，这是问题的情况下，获得了类似的警告：

DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5) 
DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5) 
/app/app/controllers/admin/users_controller.rb:1:in `<top (required)>': superclass mismatch for class UsersController (TypeError) 
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require' 
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `block in require' 
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:236:in `load_dependency' 
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require' 
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:359:in `require_or_load' 
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:313:in `depend_on' 
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:225:in `require_dependency' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/engine.rb:439:in `block (2 levels) in eager_load!' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/engine.rb:438:in `each' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/engine.rb:438:in `block in eager_load!' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/engine.rb:436:in `each' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/engine.rb:436:in `eager_load!' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/application/finisher.rb:53:in `block in <module:Finisher>' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:30:in `instance_exec' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:30:in `run' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:55:in `block in run_initializers' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:54:in `each' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/initializable.rb:54:in `run_initializers' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/application.rb:136:in `initialize!' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/railtie/configurable.rb:30:in `method_missing' 
    from /app/config/environment.rb:5:in `<top (required)>' 
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require' 
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `block in require' 
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:236:in `load_dependency' 
    from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.3/lib/active_support/dependencies.rb:251:in `require' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/application.rb:103:in `require_environment!' 
    from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.3/lib/rails/commands.rb:40:in `<top (required)>' 
    from script/rails:6:in `require' 
    from script/rails:6:in `<main>' 

这里是我的Gemfile：

source 'https://rubygems.org' 

gem 'rails', '3.2.3' 
gem 'bootstrap-sass', '2.0.0' 
gem 'omniauth' 
gem 'omniauth-facebook' 
gem 'omniauth-twitter' 
gem 'omniauth-oauth' 
gem 'devise' 
gem 'cancan' 
gem 'paperclip' 
gem 'canard' 
gem 'activeadmin' 
gem 'acts_as_tree' 
gem 'formtastic' 


# Bundle edge Rails instead: 
# gem 'rails', :git => 'git://github.com/rails/rails.git' 



group :development, :test do 
gem 'sqlite3' 
gem 'nifty-generators' 
end 

group :production do 
    gem 'pg' 
    gem 'thin' 
end 


# Gems used only for assets and not required 
# in production environments by default. 
group :assets do 
    gem 'sass-rails', '~> 3.2.3' 
    gem 'coffee-rails', '~> 3.2.1' 

    # See https://github.com/sstephenson/execjs#readme for more supported runtimes 
    # gem 'therubyracer', :platform => :ruby 

    gem 'uglifier', '>= 1.0.3' 
end 

gem 'jquery-rails' 

# To use ActiveModel has_secure_password 
# gem 'bcrypt-ruby', '~> 3.0.0' 

# To use Jbuilder templates for JSON 
# gem 'jbuilder' 

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

# Deploy with Capistrano 
# gem 'capistrano' 

# To use debugger 
# gem 'ruby-debug19', :require => 'ruby-debug' 

是否有特定的宝石我应该删除？

Answer 1

这里有两件事：a弃用警告和错误。该错误是

/app/app/controllers/admin/users_controller.rb:1:in `<top (required)>': superclass mismatch for class UsersController (TypeError) 

superclass mismatch for class UsersController什么，这通常意味着你正在使用的名称，多数民众赞成已经被使用。我的第一个猜测是你在你的admin文件夹和你的根控制器文件夹中有一个UsersController，但那只是一个猜测。无论哪种方式，你都会在调用超类时出现错误。

该deprectation警告不应该导致任何问题，只是一个警告，以改变未来版本的Rails的代码。