未定义的方法`rescue_responses'的ActionDispatch :: ShowExceptions：类（NoMethodError）

Question

在我的红宝石2.3.1，我得到这个错误：

=> Booting WEBrick 
=> Rails 4.2.6 application starting in development on http://localhost:3000 
=> Run `rails server -h` for more startup options 
=> Ctrl-C to shutdown server 
Exiting 
/root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/will_paginate-3.0.pre2/lib/will_paginate/railtie.rb:15:in `block in <class:Railtie>': uninitialized constant WillPaginate::Railtie::Forbidden (NameError) 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `instance_exec' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `run' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:55:in `block in run_initializers' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:228:in `block in tsort_each' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:431:in `each_strongly_connected_component_from' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:349:in `block in each_strongly_connected_component' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:347:in `each' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:347:in `call' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:347:in `each_strongly_connected_component' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:226:in `tsort_each' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:205:in `tsort_each' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:54:in `run_initializers' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:352:in `initialize!' 
     from /home/bistipweb/config/environment.rb:5:in `<top (required)>' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/polyglot-0.3.1/lib/polyglot.rb:64:in `require' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/polyglot-0.3.1/lib/polyglot.rb:64:in `require' 
     from /home/bistipweb/config.ru:3:in `block in <main>' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/builder.rb:55:in `instance_eval' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/builder.rb:55:in `initialize' 
     from /home/bistipweb/config.ru:in `new' 
     from /home/bistipweb/config.ru:in `<main>' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/builder.rb:49:in `eval' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/builder.rb:49:in `new_from_string' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/builder.rb:40:in `parse_file' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/server.rb:299:in `build_app_and_options_from_config' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/server.rb:208:in `app' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/server.rb:61:in `app' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/server.rb:336:in `wrapped_app' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/server.rb:139:in `log_to_stdout' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/server.rb:78:in `start' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:80:in `block in server' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `tap' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `server' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!' 
     from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>' 
     from bin/rails:4:in `require' 
     from bin/rails:4:in `<main>' 

我railtie.rb是：

require 'will_paginate' 
require 'will_paginate/collection' 

module WillPaginate 
     class Railtie < Rails::Railtie 
       initializer "will_paginate.active_record" do |app| 
         if defined? ::ActiveRecord 
           require 'will_paginate/finders/active_record' 
           WillPaginate::Finders::ActiveRecord.enable! 
         end 
       end 

       initializer "will_paginate.action_dispatch" do |app| 
         if defined?(ActionController::Base) 
           config.action_dispatch.rescue_responses.update('ActionController::Forbidden'=>Forbidden) 
         end 
       end 

       initializer "will_paginate.action_view" do |app| 
         require 'will_paginate/view_helpers/action_view' 
         ActionView::Base.send(:include, WillPaginate::ViewHelpers::ActionView) 
       end 
     end 
end 

哪有我修复它？

Answer 1

尝试：

initializer "will_paginate.action_dispatch" do |app| 
    if defined?(ActionController::Base) 
    config.action_dispatch.rescue_responses.update('ActionController::Forbidden'=>Forbidden) 
    end 
end 

Answer 2

您不必加任何初始化代码挂钩will_paginate Rails的项目，如果您使用的是最新版本的will_paginate。

我看你使用3.0.pre2版本，更新为3.0.7在你的Gemfile，bundle update will_paginate并删除所有你在railtie.rb添加的代码，我想一切都会好起来。

Answer 3

我没有找到任何理由给你添加railtie.rb文件。我相信只要添加宝石并在你的视图中使用它应该有效。