正在获取**“TypeError：无法读取null的属性（阅读'useMemo'）**error Redux in my react redux application.我做了一个非常简单的react redux应用程序.但我一直得到这个错误.搜索这个错误在互联网上不幸的是没有得到任何解决方案.

Redux文件夹结构：

src >> state(folder) >> store.js
reducer.js

减速器.js

const initialState={
    user:[]
}

export const userReducer=(state=initialState,action)=>{
    switch (action.type) {
        case "TEST_DATA":
                return state
        default:
            return state
    }
 
}

存储.js

import {createStore,applyMiddleware} from "redux"
import {userReducer} from './reducer'
import {composeWithDevTools} from 'redux-devtools-extension'
import thunk from 'redux-thunk'

export const store=createStore(userReducer,composeWithDevTools(applyMiddleware(thunk)))

索引.js

import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import { Provider } from 'react-redux';
import {store} from './state/store'

ReactDOM.render(
<Provider store={store}>
  <App />
</Provider>
  ,
  document.getElementById('root')
);

尝试访问App.jsx组件中的状态

console.log(useSelector(state=>state))

我试图修复它从过去3-4天。请帮助我是新的React和redux。提前感谢