我正在尝试在控制台中执行Rails Cache的这条语句：
Rails.cache.fetch('some_other_key', expires_in: 24.hours) { 50 + 50 }
它抛出这样的错误：
ArgumentError (wrong number of arguments (given 1, expected 2))
rails 版本是
Rails 5.1.7config.cache_store = :memory_store我尝试切换到 Redis 存储，但错误仍然相同。
这是完整的轨迹：
activesupport (5.1.7) lib/active_support/cache.rb:542:in `normalize_key'
meta_request (0.8.2) lib/meta_request/event.rb:61:in `sanitize_hash'
meta_request (0.8.2) lib/meta_request/event.rb:42:in `json_encodable'
meta_request (0.8.2) lib/meta_request/event.rb:18:in `initialize'
meta_request (0.8.2) lib/meta_request/app_notifications.rb:31:in `new'
meta_request (0.8.2) lib/meta_request/app_notifications.rb:31:in `block in <class:AppNotifications>'
meta_request (0.8.2) lib/meta_request/app_notifications.rb:82:in `block in subscribe'
activesupport (5.1.7) lib/active_support/notifications/fanout.rb:127:in `finish'
activesupport (5.1.7) lib/active_support/notifications/fanout.rb:46:in `block in finish'
activesupport (5.1.7) lib/active_support/notifications/fanout.rb:46:in `each'
activesupport (5.1.7) lib/active_support/notifications/fanout.rb:46:in `finish'
activesupport (5.1.7) lib/active_support/notifications/instrumenter.rb:42:in `finish_with_state'
activesupport (5.1.7) lib/active_support/notifications/instrumenter.rb:27:in `instrument'
activesupport (5.1.7) lib/active_support/notifications.rb:166:in `instrument'
activesupport (5.1.7) lib/active_support/cache.rb:555:in `instrument'
activesupport (5.1.7) lib/active_support/cache.rb:287:in `fetch'
app/controllers/config_service/organization_flags_controller.rb:61:in `get_legacy_flags'
app/controllers/config_service/organization_flags_controller.rb:10:in `index'
actionpack (5.1.7) lib/action_controller/metal/basic_implicit_render.rb:4:in `send_action'
actionpack (5.1.7) lib/abstract_controller/base.rb:186:in `process_action'
actionpack (5.1.7) lib/action_controller/metal/rendering.rb:30:in `process_action'
actionpack (5.1.7) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
activesupport (5.1.7) lib/active_support/callbacks.rb:131:in `run_callbacks'
actionpack (5.1.7) lib/abstract_controller/callbacks.rb:19:in `process_action'
actionpack (5.1.7) lib/action_controller/metal/rescue.rb:20:in `process_action'
actionpack (5.1.7) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
activesupport (5.1.7) lib/active_support/notifications.rb:166:in `block in instrument'
activesupport (5.1.7) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (5.1.7) lib/active_support/notifications.rb:166:in `instrument'
actionpack (5.1.7) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (5.1.7) lib/action_controller/metal/params_wrapper.rb:252:in `process_action'
searchkick (3.1.3) lib/searchkick/logging.rb:209:in `process_action'
activerecord (5.1.7) lib/active_record/railties/controller_runtime.rb:22:in `process_action'
actionpack (5.1.7) lib/abstract_controller/base.rb:124:in `process'
actionview (5.1.7) lib/action_view/rendering.rb:30:in `process'
actionpack (5.1.7) lib/action_controller/metal.rb:189:in `dispatch'
actionpack (5.1.7) lib/action_controller/metal.rb:253:in `dispatch'
actionpack (5.1.7) lib/action_dispatch/routing/route_set.rb:49:in `dispatch'
actionpack (5.1.7) lib/action_dispatch/routing/route_set.rb:31:in `serve'
actionpack (5.1.7) lib/action_dispatch/journey/router.rb:50:in `block in serve'
actionpack (5.1.7) lib/action_dispatch/journey/router.rb:33:in `each'
actionpack (5.1.7) lib/action_dispatch/journey/router.rb:33:in `serve'
actionpack (5.1.7) lib/action_dispatch/routing/route_set.rb:844:in `call'
omniauth (2.0.4) lib/omniauth/strategy.rb:202:in `call!'
omniauth (2.0.4) lib/omniauth/strategy.rb:169:in `call'
omniauth (2.0.4) lib/omniauth/builder.rb:45:in `call'
bullet (7.1.6) lib/bullet/rack.rb:14:in `call'
meta_request (0.8.2) lib/meta_request/middlewares/app_request_handler.rb:15:in `call'
meta_request (0.8.2) lib/meta_request/middlewares/meta_request_handler.rb:15:in `call'
rack (2.0.9.4) lib/rack/etag.rb:25:in `call'
rack (2.0.9.4) lib/rack/conditional_get.rb:25:in `call'
rack (2.0.9.4) lib/rack/head.rb:12:in `call'
rack (2.0.9.4) lib/rack/session/abstract/id.rb:259:in `context'
rack (2.0.9.4) lib/rack/session/abstract/id.rb:253:in `call'
actionpack (5.1.7) lib/action_dispatch/middleware/cookies.rb:613:in `call'
actionpack (5.1.7) lib/action_dispatch/middleware/callbacks.rb:26:in `block in call'
activesupport (5.1.7) lib/active_support/callbacks.rb:97:in `run_callbacks'
actionpack (5.1.7) lib/action_dispatch/middleware/callbacks.rb:24:in `call'
better_errors (2.10.1) lib/better_errors/middleware.rb:87:in `protected_app_call'
better_errors (2.10.1) lib/better_errors/middleware.rb:82:in `better_errors_call'
better_errors (2.10.1) lib/better_errors/middleware.rb:60:in `call'
bugsnag (6.27.1) lib/bugsnag/integrations/rack.rb:51:in `call'
actionpack (5.1.7) lib/action_dispatch/middleware/debug_exceptions.rb:59:in `call'
web-console (3.7.0) lib/web_console/middleware.rb:135:in `call_app'
web-console (3.7.0) lib/web_console/middleware.rb:30:in `block in call'
web-console (3.7.0) lib/web_console/middleware.rb:20:in `catch'
web-console (3.7.0) lib/web_console/middleware.rb:20:in `call'
rack-contrib (2.5.0) lib/rack/contrib/response_headers.rb:23:in `call'
meta_request (0.8.2) lib/meta_request/middlewares/headers.rb:18:in `call'
actionpack (5.1.7) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'
railties (5.1.7) lib/rails/rack/logger.rb:36:in `call_app'
railties (5.1.7) lib/rails/rack/logger.rb:24:in `block in call'
activesupport (5.1.7) lib/active_support/tagged_logging.rb:69:in `block in tagged'
activesupport (5.1.7) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (5.1.7) lib/active_support/tagged_logging.rb:69:in `tagged'
railties (5.1.7) lib/rails/rack/logger.rb:24:in `call'
sprockets-rails (3.2.2) lib/sprockets/rails/quiet_assets.rb:13:in `call'
actionpack (5.1.7) lib/action_dispatch/middleware/remote_ip.rb:79:in `call'
request_store (1.7.0) lib/request_store/middleware.rb:19:in `call'
actionpack (5.1.7) lib/action_dispatch/middleware/request_id.rb:25:in `call'
rack (2.0.9.4) lib/rack/method_override.rb:22:in `call'
rack (2.0.9.4) lib/rack/runtime.rb:22:in `call'
actionpack (5.1.7) lib/action_dispatch/middleware/executor.rb:12:in `call'
actionpack (5.1.7) lib/action_dispatch/middleware/static.rb:125:in `call'
rack (2.0.9.4) lib/rack/sendfile.rb:111:in `call'
rack-cors (2.0.2) lib/rack/cors.rb:102:in `call'
railties (5.1.7) lib/rails/engine.rb:522:in `call'
puma (3.12.6) lib/puma/configuration.rb:227:in `call'
puma (3.12.6) lib/puma/server.rb:706:in `handle_request'
puma (3.12.6) lib/puma/server.rb:476:in `process_client'
puma (3.12.6) lib/puma/server.rb:334:in `block in run'
puma (3.12.6) lib/puma/thread_pool.rb:135:in `block in spawn_thread'
我找到了解决方案 在本地： 这是因为 active_support 库问题。 要解决此问题：