我是 Ruby 和 Rails 的新手，在生成简单控制器时询问错误 http://writelesscode.com/blog/2012/10/20/extjs-rails-crud-application-in-7-minutes/
$ rails g controller welcome index
/Library/Ruby/Gems/1.8/gems/netzke-core-0.8.2/lib/netzke/core/railz.rb:2:inrequire': /Library/Ruby/Gems/1.8/gems/netzke-core-0.8.2/lib/netzke/core/railz/routes.rb:18: syntax error, unexpected ':', expecting kEND (SyntaxError)
...refix}/:action(.:format)", to: controller.to_s, as: 'netzke'
^
/Library/Ruby/Gems/1.8/gems/netzke-core-0.8.2/lib/netzke/core/railz/routes.rb:18: syntax error, unexpected ':', expecting '='
...at)", to: controller.to_s, as: 'netzke'
^
from /Library/Ruby/Gems/1.8/gems/netzke-core-0.8.2/lib/netzke/core/railz.rb:2
from /Library/Ruby/Gems/1.8/gems/netzke-core-0.8.2/lib/netzke-core.rb:10:in来自/Library/Ruby/Gems/1.8/gems/netzke-core- 0.8.2/lib/netzke-core.rb:10 来自 /Library/Ruby/Gems/1.8/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:inrequire'
from /Library/Ruby/Gems/1.8/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in来自 /Library/Ruby/ Gems/1.8/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:ineach'
from /Library/Ruby/Gems/1.8/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in需要来自 /Library/Ruby/Gems/1.8/gems/bundler-1.2.3/lib/bundler/runtime.rb来自/Library/Ruby/Gems/1.8/gems/bundler-1.2.3/lib/bundler.rb:128:in require'的：55:in each'
from /Library/Ruby/Gems/1.8/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:inrequire'require'
from /Users/sparta/Work/rails/erp/config/application.rb:7
from /Library/Ruby/Gems/1.8/gems/railties-3.2.12/lib/rails/commands.rb:24:in来自/Library/Ruby/Gems/1.8/gems/railties-3.2 .12/lib/rails/commands.rb:24 来自 script/rails:6:in `require' 来自 script/rails:6
也许路线有问题？我错过了什么？