未定义的方法`remove_previously_stored_files_after_update＆＃39; for＃<actiondispatch :: http :: uploadedfile：0x0000000d3f7778> carrierwave

Question

我正在使用rails 4处理图片上传，但我遇到了问题，无法使其正常工作。

undefined method `remove_previously_stored_files_after_update' for #<ActionDispatch::Http::UploadedFile:0x0000000d3f7778>

有人可以帮我解决这个问题吗？

以下是完整跟踪：

  

carrierwave（0.10.0）lib / carrierwave / mount.rb:233：in   make_lambda中的store_previous_model_for_image' activesupport (4.2.3) lib/active_support/callbacks.rb:430:in阻止＆＃39;   activesupport（4.2.3）lib / active_support / callbacks.rb：162：在call' activesupport (4.2.3) lib/active_support/callbacks.rb:162:in块中   停止＆＃39; activesupport（4.2.3）lib / active_support / callbacks.rb：502：in   call' activesupport (4.2.3) lib/active_support/callbacks.rb:502:in 阻止通话＆＃39; activesupport（4.2.3）   lib / active_support / callbacks.rb：502：在each' activesupport (4.2.3) lib/active_support/callbacks.rb:502:in来电＆＃39; activesupport（4.2.3）   lib / active_support / callbacks.rb:88:in run_callbacks' activerecord (4.2.3) lib/active_record/callbacks.rb:310:in _ update_record＆＃39;   activerecord（4.2.3）lib / active_record / timestamp.rb:70:in   _update_record' activerecord (4.2.3) lib/active_record/persistence.rb:504:in create_or_update＆＃39;   activerecord（4.2.3）lib / active_record / callbacks.rb：302：block in create_or_update' activesupport (4.2.3) lib/active_support/callbacks.rb:115:in来电＆＃39; activesupport（4.2.3）   lib / active_support / callbacks.rb：115：在call' activesupport (4.2.3) lib/active_support/callbacks.rb:553:in块中（2级）编译＆＃39;   activesupport（4.2.3）lib / active_support / callbacks.rb:503:in call' activesupport (4.2.3) lib/active_support/callbacks.rb:503:in call＆＃39;   activesupport（4.2.3）lib / active_support / callbacks.rb:88:in   run_callbacks' activerecord (4.2.3) lib/active_record/callbacks.rb:302:in create_or_update＆＃39; ActiveRecord的   （4.2.3）lib / active_record / persistence.rb：120：在save' activerecord (4.2.3) lib/active_record/validations.rb:37:in中保存＆＃39; ActiveRecord的   （4.2.3）lib / active_record / attribute_methods / dirty.rb：21：在save' activerecord (4.2.3) lib/active_record/transactions.rb:286:in块中   （2级）保存＆＃39; activerecord（4.2.3）   lib / active_record / transactions.rb：351：在block in with_transaction_returning_status' activerecord (4.2.3) lib/active_record/connection_adapters/abstract/database_statements.rb:211:in 交易＆＃39; activerecord（4.2.3）   lib / active_record / transactions.rb：220：在transaction' activerecord (4.2.3) lib/active_record/transactions.rb:348:in with_transaction_returning_status＆＃39; activerecord（4.2.3）   lib / active_record / transactions.rb：286：in block in save' activerecord (4.2.3) lib/active_record/transactions.rb:301:in rollback_active_record_state！＆＃39; activerecord（4.2.3）   lib / active_record / transactions.rb：285：在save' activerecord (4.2.3) lib/active_record/persistence.rb:252:in块更新＆＃39; ActiveRecord的   （4.2.3）lib / active_record / transactions.rb：351：在事务中的block in with_transaction_returning_status' activerecord (4.2.3) lib/active_record/connection_adapters/abstract/database_statements.rb:213:in 块中＆＃39; activerecord（4.2.3）   LIB / active_record / connection_adapters /抽象/ transaction.rb：184：在   within_new_transaction' activerecord (4.2.3) lib/active_record/connection_adapters/abstract/database_statements.rb:213:in 交易＆＃39; activerecord（4.2.3）   lib / active_record / transactions.rb：220：在transaction' activerecord (4.2.3) lib/active_record/transactions.rb:348:in with_transaction_returning_status＆＃39; activerecord（4.2.3）   lib / active_record / persistence.rb：250：update' app/controllers/front/ads_controller.rb:38:in更新＆＃39; ActionPack的   （4.2.3）lib / action_controller / metal / implicit_render.rb：4：in   send_action' actionpack (4.2.3) lib/abstract_controller/base.rb:198:in process_action＆＃39; ActionPack的   （4.2.3）lib / action_controller / metal / rendering.rb：10：in   进程中的process_action' actionpack (4.2.3) lib/abstract_controller/callbacks.rb:20:in阻止＆＃39;   activesupport（4.2.3）lib / active_support / callbacks.rb:115：在call' activesupport (4.2.3) lib/active_support/callbacks.rb:115:in来电＆＃39;   activesupport（4.2.3）lib / active_support / callbacks.rb:553:in block (2 levels) in compile' activesupport (4.2.3) lib/active_support/callbacks.rb:503:in call＆＃39; activesupport（4.2.3）   lib / active_support / callbacks.rb：503：在call' activesupport (4.2.3) lib/active_support/callbacks.rb:88:in run_callbacks＆＃39; ActionPack的   （4.2.3）lib / abstract_controller / callbacks.rb：19：在process_action' actionpack (4.2.3) lib/action_controller/metal/rescue.rb:29:in process_action＆＃39; actionpack（4.2.3）   lib / action_controller / metal / instrumentation.rb：32：在block in process_action' activesupport (4.2.3) lib/active_support/notifications.rb:164:in块中的仪器＆＃39;   activesupport（4.2.3）   lib / active_support / notifications / instrumenter.rb：20：在instrument' activesupport (4.2.3) lib/active_support/notifications.rb:164:in 工具＆＃39; actionpack（4.2.3）   lib / action_controller / metal / instrumentation.rb：30：在process_action' actionpack (4.2.3) lib/action_controller/metal/params_wrapper.rb:250:in process_action＆＃39;   activerecord（4.2.3）   LIB / active_record / railties / controller_runtime.rb：18：在   process_action' actionpack (4.2.3) lib/abstract_controller/base.rb:137:in过程＆＃39; actionview（4.2.3）   lib / action_view / rendering.rb：30：process' actionpack (4.2.3) lib/action_controller/metal.rb:196:in发送＆＃39; actionpack（4.2.3）   lib / action_controller / metal / rack_delegation.rb：13：在dispatch' actionpack (4.2.3) lib/action_controller/metal.rb:237:in块中   动作＆＃39; actionpack（4.2.3）   lib / action_dispatch / routing / route_set.rb：76：在call' actionpack (4.2.3) lib/action_dispatch/routing/route_set.rb:76:in发送＆＃39;   actionpack（4.2.3）lib / action_dispatch / routing / route_set.rb:45:in   serve' actionpack (4.2.3) lib/action_dispatch/journey/router.rb:43:in 阻止服务＆＃39; actionpack（4.2.3）   lib / action_dispatch / journey / router.rb：30：each' actionpack (4.2.3) lib/action_dispatch/journey/router.rb:30:in发送＆＃39; actionpack（4.2.3）   lib / action_dispatch / routing / route_set.rb：821：在call' rack (1.6.4) lib/rack/etag.rb:24:in来电＆＃39;机架（1.6.4）   lib / rack / conditionalget.rb:38:in call' rack (1.6.4) lib/rack/head.rb:13:in来电＆＃39; actionpack（4.2.3）   lib / action_dispatch / middleware / params_parser.rb:27:in call' actionpack (4.2.3) lib/action_dispatch/middleware/flash.rb:260:in 来电＆＃39; rack（1.6.4）lib / rack / session / abstract / id.rb:225：在context' rack (1.6.4) lib/rack/session/abstract/id.rb:220:in电话＆＃39; ActionPack的   （4.2.3）lib / action_dispatch / middleware / cookies.rb：560：在call' activerecord (4.2.3) lib/active_record/query_cache.rb:36:in电话＆＃39;   activerecord（4.2.3）   LIB / active_record / connection_adapters /抽象/ connection_pool.rb：653：在   call' activerecord (4.2.3) lib/active_record/migration.rb:377:in 呼叫＆＃39; actionpack（4.2.3）   lib / action_dispatch / middleware / callbacks.rb：29：在block in call' activesupport (4.2.3) lib/active_support/callbacks.rb:84:in run_callbacks＆＃39; actionpack（4.2.3）   lib / action_dispatch / middleware / callbacks.rb：27：call' actionpack (4.2.3) lib/action_dispatch/middleware/reloader.rb:73:in来电＆＃39;   actionpack（4.2.3）lib / action_dispatch / middleware / remote_ip.rb:78:in   call' actionpack (4.2.3) lib/action_dispatch/middleware/debug_exceptions.rb:17:in呼叫＆＃39;   web-console（2.2.1）lib / web_console / middleware.rb:39:in call' actionpack (4.2.3) lib/action_dispatch/middleware/show_exceptions.rb:30:in call＆＃39;   railties（4.2.3）lib / rails / rack / logger.rb:38:in call_app' railties (4.2.3) lib/rails/rack/logger.rb:20:in阻止电话＆＃39;的ActiveSupport   （4.2.3）lib / active_support / tagged_logging.rb：68：在block in tagged' activesupport (4.2.3) lib/active_support/tagged_logging.rb:26:in 标记的＆＃39; activesupport（4.2.3）   lib / active_support / tagged_logging.rb:68:in tagged' railties (4.2.3) lib/rails/rack/logger.rb:20:in来电＆＃39; actionpack（4.2.3）   lib / action_dispatch / middleware / request_id.rb:21:in call' rack (1.6.4) lib/rack/methodoverride.rb:22:in来电＆＃39;机架（1.6.4）   lib / rack / runtime.rb:18:in call' activesupport (4.2.3) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in call＆＃39; rack（1.6.4）lib / rack / lock.rb:17:in call' actionpack (4.2.3) lib/action_dispatch/middleware/static.rb:116:in call＆＃39;机架（1.6.4）   lib / rack / sendfile.rb:113：在call' railties (4.2.3) lib/rails/engine.rb:518:in电话＆＃39;铁路（4.2.3）   lib / rails / application.rb：165：call' rack (1.6.4) lib/rack/lock.rb:17:in来电＆＃39;机架（1.6.4）   lib / rack / content_length.rb:15:in call' rack (1.6.4) lib/rack/handler/webrick.rb:88:in service＆＃39;   C：/ruby/Ruby21-x64/lib/ruby/2.1.0/webrick/httpserver.rb：138：在   service' C:/ruby/Ruby21-x64/lib/ruby/2.1.0/webrick/httpserver.rb:94:in运行＆＃39;   C：/ruby/Ruby21-x64/lib/ruby/2.1.0/webrick/server.rb:295：在`block in   start_thread＆＃39;

提前致谢