javascript - "Error: You may not call store.getState() while the reducer is executing."

Question

我刚刚将功能齐全的 React-Native 应用程序升级到 Redux v4，但现在出现以下错误:

Error: Error: Error: Error: You may not call store.getState() while the reducer is executing. The reducer has already received the state as an argument. Pass it down from the top reducer instead of reading it from the store.

我怀疑问题是我在其他组件中有很多组件，每个组件都有自己的connect(mapStateToProps, mapDispatchToProps)(Component)，但我认为这不是实现它的正确方法我不确定正确的方法。

非常感谢任何方向!

堆栈跟踪:

    This error is located at:
    in Connect(SideBarApp) (at SceneView.js:9)
    in SceneView (at createTabNavigator.js:10)
    in RCTView (at View.js:43)
    in RCTView (at View.js:43)
    in ResourceSavingScene (at createBottomTabNavigator.js:86)
    in RCTView (at View.js:43)
    in RCTView (at View.js:43)
    in TabNavigationView (at createTabNavigator.js:127)
    in NavigationView (at createNavigator.js:59)
    in Navigator (at createNavigationContainer.js:376)
    in NavigationContainer (at SceneView.js:9)
    in SceneView (at SwitchView.js:12)
    in SwitchView (at createNavigator.js:59)
    in Navigator (at createNavigationContainer.js:376)
    in NavigationContainer (at AppNavigator.js:36)
    in App (created by Connect(App))
    in Connect(App) (at index.ios.js:23)
    in Provider (at index.ios.js:22)
    in TheNewsApp (at renderApplication.js:32)
    in RCTView (at View.js:43)
    in RCTView (at View.js:43)
    in AppContainer (at renderApplication.js:31)

This error is located at:
    in NavigationContainer (at SceneView.js:9)
    in SceneView (at SwitchView.js:12)
    in SwitchView (at createNavigator.js:59)
    in Navigator (at createNavigationContainer.js:376)
    in NavigationContainer (at AppNavigator.js:36)
    in App (created by Connect(App))
    in Connect(App) (at index.ios.js:23)
    in Provider (at index.ios.js:22)
    in TheNewsApp (at renderApplication.js:32)
    in RCTView (at View.js:43)
    in RCTView (at View.js:43)
    in AppContainer (at renderApplication.js:31)

This error is located at:
    in NavigationContainer (at AppNavigator.js:36)
    in App (created by Connect(App))
    in Connect(App) (at index.ios.js:23)
    in Provider (at index.ios.js:22)
    in TheNewsApp (at renderApplication.js:32)
    in RCTView (at View.js:43)
    in RCTView (at View.js:43)
    in AppContainer (at renderApplication.js:31)
getState@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:79579:24
runComponentSelector@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:78896:56
initSelector@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:79019:28
Connect(SideBarApp)@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:78969:29
constructClassInstance@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:20826:32
updateClassComponent@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:22393:35
performUnitOfWork@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:24922:27
workLoop@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:24955:47
renderRoot@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:24988:21
performWorkOnRoot@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:25549:23
performWork@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:25481:30
performSyncWork@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:25456:20
requestWork@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:25362:26
scheduleWork@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:25224:28
enqueueSetState@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:20681:23
setState@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:2380:37
dispatch@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:80901:27
navigate@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:80517:24
nav@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:80470:44
combination@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:79810:38
dispatch@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:79628:38
setLoginStatus@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:112247:19
http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:112199:44
tryCallOne@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:8818:16
http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:8919:27
_callTimer@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:8162:17
_callImmediatesPass@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:8198:19
callImmediates@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:8417:33
__callImmediates@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:7741:32
http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:7580:34
__guard@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:7721:15
flushedQueue@http://localhost:8081/index.ios.bundle?platform=ios&dev=true&minify=false:7579:21
flushedQueue@[native code]
invokeCallbackAndReturnFlushedQueue@[native code]

Answer 1

这是 redux-devtools-extension 的新 v2.16.0 版本的问题。

在我们等待修复期间，这里有一些解决方法...

1. 恢复至工作版本 v2.15.5(适用于 Chrome)

   • 下载 https://github.com/zalmoxisus/redux-devtools-extension/releases/download/2.15.5/extension.zip
   • 解压缩 zip
   • 在网址中输入 chrome://extensions，然后在页面右上角 上打开开发者模式。
   • 将会出现加载已解压的按钮。单击按钮后，选择解压的文件夹。

2. 或者只是暂时禁用您的redux-devtool扩展。

   • 在浏览器级别或通过您的代码(您在其中创建 redux 存储区)

<小时/>

仅供引用:这并不能解决OP的问题，但确实解决了开发人员从2018年11月27日开始收到以下错误消息的问题。

错误:当 reducer 执行时，您不能调用 store.getState()。 reducer 已经收到状态作为参数。从顶部 reducer 将其传递下来，而不是从存储中读取。

<小时/>

更新

v2.16.2 已 released

对于那些之前禁用了该扩展的人，只需重新启用它并将您的 redux 开发工具从 2.16.0 更新到 2.16.2 Update Redux Dev tools