Nanyang Zhan wrote:
Zhao Yi wrote:
You have a nil object when you didn't expect it! The error occurred while evaluating nil.to_sym
贴出错误信息全文好查一点.
The error track is shown below.
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/routing/route.rb:145:in `extra_keys' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/routing/route.rb:145:in `map' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/routing/route.rb:145:in `extra_keys' generated code (/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/routing/route.rb:45):3:in `generate' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/routing/route_set.rb:338:in `generate' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/url_rewriter.rb:131:in `rewrite_path' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/url_rewriter.rb:110:in `rewrite_url' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/url_rewriter.rb:88:in `rewrite' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:622:in `url_for' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_view/helpers/url_helper.rb:71:in `send' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_view/helpers/url_helper.rb:71:in `url_for' (eval):17:in `ddts_path' app/views/ddts/index.html.erb:15:in `_run_erb_47app47views47ddts47index46html46erb' app/views/ddts/index.html.erb:10:in `each' app/views/ddts/index.html.erb:10:in `_run_erb_47app47views47ddts47index46html46erb' app/controllers/ddts_controller.rb:7:in `index'