Ruby on rails - Error rails s命令

我在我的Win7機器上安裝了Rails安裝程序，從http://railsinstaller.org/。我已經有了Ruby 1.9.2-p290。在通過安裝程序安裝ROR之後，我下雨了啓動服務器，出現以下錯誤。任何人都可以幫我理解這個錯誤的原因嗎？Ruby on rails - Error rails s命令

C:\Sites\ridemo>rails s 
=> Booting WEBrick 
=> Rails 3.1.0.rc6 application starting in development on http://0.0.0.0:3000 
=> Call with -d to detach 
=> Ctrl-C to shutdown server 
Exiting 
C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/actionpack-3.1.0.rc6/lib/sp 
rockets/railtie.rb:21:in `block (2 levels) in <class:Railtie>': undefined method 
`static_root=' for #<Sprockets::Environment:0x361d178> (NoMethodError) 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/sprockets-2.0. 
0/lib/sprockets/environment.rb:55:in `initialize' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/actionpack-3.1 
.0.rc6/lib/sprockets/railtie.rb:20:in `new' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/actionpack-3.1 
.0.rc6/lib/sprockets/railtie.rb:20:in `block in <class:Railtie>' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 
.rc6/lib/rails/initializable.rb:25:in `instance_exec' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 
.rc6/lib/rails/initializable.rb:25:in `run' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 
.rc6/lib/rails/initializable.rb:50:in `block in run_initializers' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 
.rc6/lib/rails/initializable.rb:49:in `each' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 
.rc6/lib/rails/initializable.rb:49:in `run_initializers' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 
.rc6/lib/rails/application.rb:92:in `initialize!' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 
.rc6/lib/rails/railtie/configurable.rb:30:in `method_missing' 
     from C:/Sites/ridemo/config/environment.rb:5:in `<top (required)>' 
     from C:/Sites/ridemo/config.ru:4:in `require' 
     from C:/Sites/ridemo/config.ru:4:in `block in <main>' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.3.2/lib 
/rack/builder.rb:51:in `instance_eval' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.3.2/lib 
/rack/builder.rb:51:in `initialize' 
     from C:/Sites/ridemo/config.ru:1:in `new' 
     from C:/Sites/ridemo/config.ru:1:in `<main>' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.3.2/lib 
/rack/builder.rb:40:in `eval' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.3.2/lib 
/rack/builder.rb:40:in `parse_file' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.3.2/lib 
/rack/server.rb:200:in `app' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 
.rc6/lib/rails/commands/server.rb:46:in `app' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.3.2/lib 
/rack/server.rb:301:in `wrapped_app' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rack-1.3.2/lib 
/rack/server.rb:252:in `start' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 
.rc6/lib/rails/commands/server.rb:70:in `start' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 
.rc6/lib/rails/commands.rb:54:in `block in <top (required)>' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 
.rc6/lib/rails/commands.rb:49:in `tap' 
     from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/railties-3.1.0 
.rc6/lib/rails/commands.rb:49:in `<top (required)>' 
     from script/rails:6:in `require' 
     from script/rails:6:in `<main>'

來源

2011-09-09 Ashish Gupta

https://github.com/rails/rails/issues/2740，嘗試更新軌道到3.1 – Fabio

想知道爲什麼這個問題被低估？我只是RoR的初學者，遇到問題並在此提問。 –

@ydobonmai - 你會因爲一個簡單的google undefined方法static_root =''回答你的問題（很多次）而陷入低谷。 downvote的主要原因是'這個問題沒有顯示任何研究努力' –

需要運行以下命令，它解決了這個問題： -

gem install rails -v=3.1.0.rc8

從（https://github.com/sstephenson/sprockets/問題/ 172）

來源

2011-09-09 02:19:48

RailsInstaller現在支持Rails 3.1，但對以前的RC版本沒有任何承諾。就像@Fabio說的那樣，嘗試更新到最新的Rails版本（在Gemfile中更改它）。另外，如果你已經安裝了ruby版本，通過檢查你的系統環境路徑變量，確定你正在使用RailsInstaller。唯一的一個路徑紅寶石應該是：

C:\RailsInstaller\Ruby1.9.2\bin;

來源

2011-09-09 01:23:10 christianblais

Ruby on rails - Error rails s命令

回答

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