Rail g设计错误：views命令

Question

我是新来的rails，无法查明问题。我是继RailsCast教程＃209关于设计，当我运行出现错误：轨摹色器件：观点

以下是错误：

/Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/mapper.rb:185:in `default_controller_and_action': missing :action (ArgumentError) 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/mapper.rb:78:in `normalize_options!' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/mapper.rb:61:in `initialize' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/mapper.rb:1304:in `new' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/mapper.rb:1304:in `add_route' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/mapper.rb:1284:in `decomposed_match' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/mapper.rb:1270:in `block in match' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/mapper.rb:1270:in `each' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/mapper.rb:1270:in `match' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/mapper.rb:260:in `root' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/mapper.rb:1317:in `root' 
from /Users/chanel.nalani/svn-work/gwb/trunk/PMOCCU/uidevise/config/routes.rb:8:in `block in <top (required)>' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/route_set.rb:282:in `instance_exec' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/route_set.rb:282:in `eval_block' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/actionpack-3.2.5/lib/action_dispatch/routing/route_set.rb:260:in `draw' 
from /Users/chanel.nalani/svn-work/gwb/trunk/PMOCCU/uidevise/config/routes.rb:1:in `<top (required)>' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.5/lib/active_support/dependencies.rb:245:in `load' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.5/lib/active_support/dependencies.rb:245:in `block in load' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.5/lib/active_support/dependencies.rb:236:in `load_dependency' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.5/lib/active_support/dependencies.rb:245:in `load' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/application/routes_reloader.rb:40:in `block in load_paths' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/application/routes_reloader.rb:40:in `each' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/application/routes_reloader.rb:40:in `load_paths' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/application/routes_reloader.rb:16:in `reload!' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/application/routes_reloader.rb:26:in `block in updater' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.5/lib/active_support/file_update_checker.rb:78:in `call' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.5/lib/active_support/file_update_checker.rb:78:in `execute' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/application/routes_reloader.rb:27:in `updater' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/application/finisher.rb:66:in `block in <module:Finisher>' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/initializable.rb:30:in `instance_exec' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/initializable.rb:30:in `run' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/initializable.rb:55:in `block in run_initializers' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/initializable.rb:54:in `each' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/initializable.rb:54:in `run_initializers' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/application.rb:136:in `initialize!' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/railtie/configurable.rb:30:in `method_missing' 
from /Users/chanel.nalani/svn-work/gwb/trunk/PMOCCU/uidevise/config/environment.rb:5:in `<top (required)>' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.5/lib/active_support/dependencies.rb:251:in `require' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.5/lib/active_support/dependencies.rb:251:in `block in require' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.5/lib/active_support/dependencies.rb:236:in `load_dependency' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/activesupport-3.2.5/lib/active_support/dependencies.rb:251:in `require' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/application.rb:103:in `require_environment!' 
from /Users/chanel.nalani/.rvm/gems/ruby-1.9.2-p320/gems/railties-3.2.5/lib/rails/commands.rb:25:in `<top (required)>' 
from script/rails:6:in `require' 
from script/rails:6:in `<main>' 

我改变了红宝石的版本，看看是否会解决问题，但我一直无法找到确切的问题。是否有其他人遇到这个错误？

Answer 1

您似乎缺少一些手动设置，需要做（如@dougui和@ janders223指出，这是最有可能的路线），因为一旦在控制台上打印为您完成运行rails generate devise:install：

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

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

    1. Ensure you have defined default url options in your environments files. Here 
    is an example of default_url_options appropriate for a development environment 
    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> 

    4. If you are deploying Rails 3.1 on Heroku, you may want to set: 

     config.assets.initialize_on_precompile = false 

    On config/application.rb forcing your application to not access the DB 
    or load models when precompiling your assets. 

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

取自https://github.com/plataformatec/devise/blob/master/lib/generators/templates/README