问题

_app.js

在这个项目中，我使用了next.js库以及redux，还使用了next redux wrapper。我按照next redux wrapper文档中提到的一切都做了，但在这里它没有正常工作，出现了未定义的getState错误，如上图所示。所以在这里我调试了所有的代码，但我找不到这个错误是从哪里出现的。
我在我的react js文件中列出了以下代码。

_app.js
```javascript
import React from "react";
import App from "next/app";
import { Provider } from "react-redux";
import withRedux from "next-redux-wrapper";
import makeStore from ".././src/config/store";

class ConsoleApp extends App {
  /**
   * Render View
   */
  render() {
    const { Component, pageProps, store } = this.props;
    return (
      <Provider store={store}>
        <Component {...pageProps} />
      </Provider>
    );
  }
}

export default withRedux(makeStore)(ConsoleApp);

root-reducer.js

/**
 * 导入依赖项
 */
import { combineReducers } from "redux-immutable";

/**
 * 导入Reducers
 * App中使用的所有Reducers都必须在此处声明！
 */
import GraphicReducer from "../modules/Graphics/reducer";
import UserReducer from "../modules/User/reducer";
/**
 * 组合Reducers
 */
const reducers = combineReducers({
  graphics: GraphicReducer,
  user: UserReducer
});

/**
 * 导出组合的Reducers
 */
export default reducers;

store.js

import { createStore, applyMiddleware } from "redux";
import { composeWithDevTools } from "redux-devtools-extension";
import reducers from "./root-reducer";
import thunk from "redux-thunk";
/**
 * 准备Redux Store
 */

const composedMiddlewares = applyMiddleware(thunk);

const storeEnhancers = composeWithDevTools({
  name: "React-node-test"
})(composedMiddlewares);

const makeStore = () => {
  createStore(reducers, storeEnhancers);
};

export default makeStore;

<details>
<summary>英文:</summary>



[![enter image description here][1]][1]

In this project, I use the next js library along with redux and I also use next redux wrapper I do everything as mentioned in the next redux wrapper document but it is not working properly here it arises the getState of undefined error as I display on the above image. So here I debugged all the code but I could not found the point from where this error is arising. 
I listed the code below which I have done in my react js files.

_app.js

import React from "react";
import App from "next/app";
import { Provider } from "react-redux";
import withRedux from "next-redux-wrapper";
import makeStore from ".././src/config/store";

class ConsoleApp extends App {
/**

• Render View
  */
  render() {
  const { Component, pageProps, store } = this.props;
  return (
  <Provider store={store}>
  <Component {...pageProps} />
  </Provider>
  );
  }
  }

export default withRedux(makeStore)(ConsoleApp);

root-reducer.js

/**

• Import Dependencies
  */
  import { combineReducers } from "redux-immutable";

/**

• Import Reducers
• All Reducers used in the App must be declared here!
  /
  import GraphicReducer from "../modules/Graphics/reducer";
  import UserReducer from "../modules/User/reducer";
  /*
• Combine the Reducers
  */
  const reducers = combineReducers({
  graphics: GraphicReducer,
  user: UserReducer
  });

/**

• Export the combined Reducers
  */
  export default reducers;

store.js

import { createStore, applyMiddleware } from "redux";
import { composeWithDevTools } from "redux-devtools-extension";
import reducers from "./root-reducer";
import thunk from "redux-thunk";
/**

• Prepare the Redux Store
  */

const composedMiddlewares = applyMiddleware(thunk);

const storeEnhancers = composeWithDevTools({
name: "React-node-test"
})(composedMiddlewares);

const makeStore = () => {
createStore(reducers, storeEnhancers);
};

export default makeStore;

  [1]: https://i.stack.imgur.com/n6NDg.png

</details>


# 答案1
**得分**: 10

请使用以下片段，因为您忘记了**返回** **createStore(reducers, storeEnhancers);**：

```javascript
const makeStore = () => {
  return createStore(reducers, storeEnhancers);
};

const makeStore = () => {
  return createStore(reducers, storeEnhancers);
};