警告:失败的道具类型:道具“商店"在“提供者"中被标记为必需,但其值为“未定义".在提供者中 [英] Warning: Failed prop type: The prop `store` is marked as required in `Provider`, but its value is `undefined`. in Provider
本文介绍了警告:失败的道具类型:道具“商店"在“提供者"中被标记为必需,但其值为“未定义".在提供者中的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何解决 react-redux 项目中的这个错误错误截图警告:失败的道具类型:道具 store
在 Provider
中被标记为必需,但其值为 undefined
.在提供者中
How to resolve this error in react-redux project
error screenshot
Warning: Failed prop type: The prop store
is marked as required in Provider
, but its value is undefined
.
in Provider
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';
import './index.css';
import SignUp from './Components/SignUp'
import SignIn from './Components/SignIn'
import Home from './Components/Home'
import { Router, Route, hashHistory, IndexRoute, browserHistory } from 'react-router';
import MuiThemeProvider from 'material-ui/styles/MuiThemeProvider';
import {firebaseApp} from './Database/firebaseApp'
import {Provider} from 'react-redux'
import {store} from './Store/Store'
import {logUser} from './Store/Actions'
ReactDOM.render(
<MuiThemeProvider>
<Provider store={store}>
<Router history={browserHistory} >
<Route path="/signup" component={SignUp} ></Route>
<Route path="/signin" component={SignIn} ></Route>
<Route path="/home" component={Home} ></Route>
</Router>
</Provider>
</MuiThemeProvider>
,
document.getElementById('root')
);
//下面存放代码
import { createStore, applyMiddleware,combineReducers } from 'redux';
import thunk from 'redux-thunk';
import {createLogger} from "redux-logger";
//import logger from 'redux-logger'
//import rootReducer from './Reducers/rootReducer'
import {authReducer} from "./Reducers/authReducer"
const rootReducer = combineReducers({
authReducer
})
const logger = createLogger();
let store = createStore(rootReducer, applyMiddleware(thunk, logger) );
export default store;
推荐答案
You export store
as default: export default store;
You export store
as default: export default store;
你需要这样导入:import store from './Store/Store'
有两种导出方式:
export myVar
必须与{
和}
一起导入export default myVar
必须在没有{
和}
的情况下导入
export myVar
must be imported with{
and}
export default myVar
must be imported without{
and}
这对于从文件中导出/导入多个变量/函数很有用:
This is useful to export/import multiple variables/functions from a file:
// file.js
export a;
export b;
export default c;
//otherfile.js
import c, { a , b} from './file';
这篇关于警告:失败的道具类型:道具“商店"在“提供者"中被标记为必需,但其值为“未定义".在提供者中的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文