nil：NilClass的未定义方法\'cookie_expiration\'

编程问答 2022-04-26

问题描述

|| 在使用清除进行身份验证时出现无方法错误，我正在尝试使用sign_up创建用户 清除率（0.11.1） 栏杆3.0.7 红宝石1.8.7 在Windows XP上。 
activesupport (3.0.7) lib/active_support/whiny_nil.rb:48:in `method_missing\'
clearance (0.11.1) lib/clearance/authentication.rb:51:in `sign_in\'
clearance (0.11.1) app/controllers/clearance/users_controller.rb:15:in `create\'
actionpack (3.0.7) lib/action_controller/Metal/implicit_render.rb:5:in `send_action\'
actionpack (3.0.7) lib/action_controller/Metal/implicit_render.rb:5:in `send_action\'
actionpack (3.0.7) lib/abstract_controller/base.rb:150:in `process_action\'
actionpack (3.0.7) lib/action_controller/Metal/rendering.rb:11:in `process_action\'
actionpack (3.0.7) lib/abstract_controller/callbacks.rb:18:in `process_action\'
activesupport (3.0.7) lib/active_support/callbacks.rb:443:in `_run__901813995__process_action__524098549__callbacks\'
activesupport (3.0.7) lib/active_support/callbacks.rb:410:in `send\'
activesupport (3.0.7) lib/active_support/callbacks.rb:410:in `_run_process_action_callbacks\'
activesupport (3.0.7) lib/active_support/callbacks.rb:94:in `send\'
activesupport (3.0.7) lib/active_support/callbacks.rb:94:in `run_callbacks\'
actionpack (3.0.7) lib/abstract_controller/callbacks.rb:17:in `process_action\'
actionpack (3.0.7) lib/action_controller/Metal/instrumentation.rb:30:in `process_action\'
activesupport (3.0.7) lib/active_support/notifications.rb:52:in `instrument\'
activesupport (3.0.7) lib/active_support/notifications/instrumenter.rb:21:in `instrument\'
activesupport (3.0.7) lib/active_support/notifications.rb:52:in `instrument\'
actionpack (3.0.7) lib/action_controller/Metal/instrumentation.rb:29:in `process_action\'
actionpack (3.0.7) lib/action_controller/Metal/rescue.rb:17:in `process_action\'
actionpack (3.0.7) lib/abstract_controller/base.rb:119:in `process\'
actionpack (3.0.7) lib/abstract_controller/rendering.rb:41:in `process\'
actionpack (3.0.7) lib/action_controller/Metal.rb:138:in `dispatch\'
actionpack (3.0.7) lib/action_controller/Metal/rack_delegation.rb:14:in `dispatch\'
actionpack (3.0.7) lib/action_controller/Metal.rb:178:in `action\'
actionpack (3.0.7) lib/action_dispatch/routing/route_set.rb:62:in `call\'
actionpack (3.0.7) lib/action_dispatch/routing/route_set.rb:62:in `dispatch\'
actionpack (3.0.7) lib/action_dispatch/routing/route_set.rb:27:in `call\'
rack-mount (0.6.14) lib/rack/mount/route_set.rb:148:in `call\'
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:93:in `recognize\'
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:75:in `optimized_each\'
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:92:in `recognize\'
rack-mount (0.6.14) lib/rack/mount/route_set.rb:139:in `call\'
actionpack (3.0.7) lib/action_dispatch/routing/route_set.rb:493:in `call\'
actionpack (3.0.7) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call\'
actionpack (3.0.7) lib/action_dispatch/middleware/head.rb:14:in `call\'
rack (1.2.3) lib/rack/methodoverride.rb:24:in `call\'
actionpack (3.0.7) lib/action_dispatch/middleware/params_parser.rb:21:in `call\'
actionpack (3.0.7) lib/action_dispatch/middleware/flash.rb:182:in `call\'
actionpack (3.0.7) lib/action_dispatch/middleware/session/abstract_store.rb:149:in `call\'
actionpack (3.0.7) lib/action_dispatch/middleware/cookies.rb:302:in `call\'
activerecord (3.0.7) lib/active_record/query_cache.rb:32:in `call\'
activerecord (3.0.7) lib/active_record/connection_adapters/abstract/query_cache.rb:28:in `cache\'
activerecord (3.0.7) lib/active_record/query_cache.rb:12:in `cache\'
activerecord (3.0.7) lib/active_record/query_cache.rb:31:in `call\'
activerecord (3.0.7) lib/active_record/connection_adapters/abstract/connection_pool.rb:354:in `call\'
actionpack (3.0.7) lib/action_dispatch/middleware/callbacks.rb:46:in `call\'
activesupport (3.0.7) lib/active_support/callbacks.rb:416:in `_run_call_callbacks\'
actionpack (3.0.7) lib/action_dispatch/middleware/callbacks.rb:44:in `call\'
rack (1.2.3) lib/rack/sendfile.rb:107:in `call\'
actionpack (3.0.7) lib/action_dispatch/middleware/remote_ip.rb:48:in `call\'
actionpack (3.0.7) lib/action_dispatch/middleware/show_exceptions.rb:47:in `call\'
railties (3.0.7) lib/rails/rack/logger.rb:13:in `call\'
rack (1.2.3) lib/rack/runtime.rb:17:in `call\'
activesupport (3.0.7) lib/active_support/cache/strategy/local_cache.rb:72:in `call\'
rack (1.2.3) lib/rack/lock.rb:11:in `call\'
rack (1.2.3) lib/rack/lock.rb:11:in `synchronize\'
rack (1.2.3) lib/rack/lock.rb:11:in `call\'
actionpack (3.0.7) lib/action_dispatch/middleware/static.rb:30:in `call\'
railties (3.0.7) lib/rails/application.rb:168:in `call\'
railties (3.0.7) lib/rails/application.rb:77:in `send\'
railties (3.0.7) lib/rails/application.rb:77:in `method_missing\'
railties (3.0.7) lib/rails/rack/log_tailer.rb:14:in `call\'
rack (1.2.3) lib/rack/content_length.rb:13:in `call\'
rack (1.2.3) lib/rack/handler/webrick.rb:52:in `service\'
c:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/httpserver.rb:104:in `service\'
c:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/httpserver.rb:65:in `run\'
c:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:173:in `start_thread\'
c:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:162:in `start\'
c:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:162:in `start_thread\'
c:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:95:in `start\'
c:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:92:in `each\'
c:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:92:in `start\'
c:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:23:in `start\'
c:/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/webrick/server.rb:82:in `start\'
rack (1.2.3) lib/rack/handler/webrick.rb:13:in `run\'
rack (1.2.3) lib/rack/server.rb:217:in `start\'
railties (3.0.7) lib/rails/commands/server.rb:65:in `start\'
railties (3.0.7) lib/rails/commands.rb:30
railties (3.0.7) lib/rails/commands.rb:27:in `tap\'
railties (3.0.7) lib/rails/commands.rb:27
script/rails:6:in `require\'
script/rails:6
编辑：添加的代码： 
class ApplicationController < ActionController::Base
  include Clearance::Authentication
  protect_from_forgery
end
模型： 
class User < ActiveRecord::Base
  include Clearance::User
end
HTML erb 
<h2>Sign in</h2>

<%= form_for :session,:url => session_path do |form| %>
  <div class=\"text_field\">
    <%= form.label :email %>
    <%= form.text_field :email,:type => \"email\" %>
  </div>
  <div class=\"text_field\">
    <%= form.label :password %>
    <%= form.password_field :password %>
  </div>
  <div class=\"submit_field\">
    <%= form.submit \"Sign in\" %>
  </div>
<% end %>

<ul>
  <li>
    <%= link_to \"Sign up\",sign_up_path %>
  </li>
  <li>
    <%= link_to \"Forgot password?\",new_password_path %>
  </li>
</ul>
    

解决方法

        删除并重新安装了clear gem，并重新启动了服务器。 不再看到错误。