Devise中的ArgumentError :: RegistrationsController＃新错误的参数个数（2个为0..1）

我跟随Ryan bates RailsCast的设计和omniauth（第235集 – 设计 – 和 – omniauth – 修订版）。 当我尝试使用twitter登录时，我不断收到标题中的错误。

def self.new_with_session(params, session) if session["devise.user_attributes"] new(session["devise.user_attributes"], without_protection: true) do |user| user.attributes = params user.valid? end 

完整追踪：

 C:/Ruby200-x64/lib/ruby/gems/2.0.0/bundler/gems/mongoid-fe7f43430580/lib/mongoid/document.rb:106:in `initialize' devise (3.0.0.rc) lib/devise/models/confirmable.rb:46:in `initialize' app/models/user/user.rb:58:in `new' app/models/user/user.rb:58:in `new_with_session' devise (3.0.0.rc) app/controllers/devise/registrations_controller.rb:86:in `build_resource' devise (3.0.0.rc) app/controllers/devise/registrations_controller.rb:7:in `new' actionpack (4.0.0.rc1) lib/action_controller/metal/implicit_render.rb:4:in `send_action' actionpack (4.0.0.rc1) lib/abstract_controller/base.rb:189:in `process_action' actionpack (4.0.0.rc1) lib/action_controller/metal/rendering.rb:10:in `process_action' actionpack (4.0.0.rc1) lib/abstract_controller/callbacks.rb:18:in `block in process_action' activesupport (4.0.0.rc1) lib/active_support/callbacks.rb:442:in `_run__1463920666__process_action__callbacks' activesupport (4.0.0.rc1) lib/active_support/callbacks.rb:80:in `run_callbacks' actionpack (4.0.0.rc1) lib/abstract_controller/callbacks.rb:17:in `process_action' actionpack (4.0.0.rc1) lib/action_controller/metal/rescue.rb:29:in `process_action' actionpack (4.0.0.rc1) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action' activesupport (4.0.0.rc1) lib/active_support/notifications.rb:159:in `block in instrument' activesupport (4.0.0.rc1) lib/active_support/notifications/instrumenter.rb:20:in `instrument' activesupport (4.0.0.rc1) lib/active_support/notifications.rb:159:in `instrument' actionpack (4.0.0.rc1) lib/action_controller/metal/instrumentation.rb:30:in `process_action' actionpack (4.0.0.rc1) lib/action_controller/metal/params_wrapper.rb:245:in `process_action' actionpack (4.0.0.rc1) lib/abstract_controller/base.rb:136:in `process' actionpack (4.0.0.rc1) lib/abstract_controller/rendering.rb:44:in `process' actionpack (4.0.0.rc1) lib/action_controller/metal.rb:195:in `dispatch' actionpack (4.0.0.rc1) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch' actionpack (4.0.0.rc1) lib/action_controller/metal.rb:231:in `block in action' actionpack (4.0.0.rc1) lib/action_dispatch/routing/route_set.rb:80:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/routing/route_set.rb:80:in `dispatch' actionpack (4.0.0.rc1) lib/action_dispatch/routing/route_set.rb:48:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/routing/mapper.rb:44:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/journey/router.rb:71:in `block in call' actionpack (4.0.0.rc1) lib/action_dispatch/journey/router.rb:59:in `each' actionpack (4.0.0.rc1) lib/action_dispatch/journey/router.rb:59:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/routing/route_set.rb:654:in `call' omniauth (1.1.4) lib/omniauth/strategy.rb:184:in `call!' omniauth (1.1.4) lib/omniauth/strategy.rb:164:in `call' C:/Ruby200-x64/lib/ruby/gems/2.0.0/bundler/gems/mongoid-fe7f43430580/lib/rack/mongoid/middleware/identity_map.rb:34:in `block in call' C:/Ruby200-x64/lib/ruby/gems/2.0.0/bundler/gems/mongoid-fe7f43430580/lib/mongoid/unit_of_work.rb:39:in `unit_of_work' C:/Ruby200-x64/lib/ruby/gems/2.0.0/bundler/gems/mongoid-fe7f43430580/lib/rack/mongoid/middleware/identity_map.rb:34:in `call' warden (1.2.1) lib/warden/manager.rb:35:in `block in call' warden (1.2.1) lib/warden/manager.rb:34:in `catch' warden (1.2.1) lib/warden/manager.rb:34:in `call' rack (1.5.2) lib/rack/etag.rb:23:in `call' rack (1.5.2) lib/rack/conditionalget.rb:25:in `call' rack (1.5.2) lib/rack/head.rb:11:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/middleware/params_parser.rb:27:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/middleware/flash.rb:241:in `call' rack (1.5.2) lib/rack/session/abstract/id.rb:225:in `context' rack (1.5.2) lib/rack/session/abstract/id.rb:220:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/middleware/cookies.rb:486:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' activesupport (4.0.0.rc1) lib/active_support/callbacks.rb:392:in `_run__1122738349__call__callbacks' activesupport (4.0.0.rc1) lib/active_support/callbacks.rb:80:in `run_callbacks' actionpack (4.0.0.rc1) lib/action_dispatch/middleware/callbacks.rb:27:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/middleware/reloader.rb:64:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/middleware/remote_ip.rb:76:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call' railties (4.0.0.rc1) lib/rails/rack/logger.rb:38:in `call_app' railties (4.0.0.rc1) lib/rails/rack/logger.rb:21:in `block in call' activesupport (4.0.0.rc1) lib/active_support/tagged_logging.rb:67:in `block in tagged' activesupport (4.0.0.rc1) lib/active_support/tagged_logging.rb:25:in `tagged' activesupport (4.0.0.rc1) lib/active_support/tagged_logging.rb:67:in `tagged' railties (4.0.0.rc1) lib/rails/rack/logger.rb:21:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/middleware/request_id.rb:21:in `call' rack (1.5.2) lib/rack/methodoverride.rb:21:in `call' rack (1.5.2) lib/rack/runtime.rb:17:in `call' activesupport (4.0.0.rc1) lib/active_support/cache/strategy/local_cache.rb:83:in `call' rack (1.5.2) lib/rack/lock.rb:17:in `call' actionpack (4.0.0.rc1) lib/action_dispatch/middleware/static.rb:64:in `call' railties (4.0.0.rc1) lib/rails/engine.rb:511:in `call' railties (4.0.0.rc1) lib/rails/application.rb:96:in `call' rack (1.5.2) lib/rack/lock.rb:17:in `call' rack (1.5.2) lib/rack/content_length.rb:14:in `call' rack (1.5.2) lib/rack/handler/webrick.rb:60:in `service' C:/Ruby200-x64/lib/ruby/2.0.0/webrick/httpserver.rb:138:in `service' C:/Ruby200-x64/lib/ruby/2.0.0/webrick/httpserver.rb:94:in `run' C:/Ruby200-x64/lib/ruby/2.0.0/webrick/server.rb:295:in `block in start_thread' 

对于RoR来说还是一个非常新的东西，所以任何帮助都会受到欢迎。

Answer 1

在您的应用程序跟踪中，我可以看到您正在使用Rails 4，它现在删除了模型的质量分配，并将其替换为strong_parameters gem作为默认值。

因此，在创建新记录时，您可以删除’without_protection’选项，因为它不再实现。

新的代码行应为：

 new session["devise.user_attributes"] do |user|