使用react和redux设置Firebase / firestore的问题。正在阅读http://docs.react-redux-firebase.com/history/v3.0.0/docs/getting_started.html上的所有文档,并且无法呈现该应用程序并获得错误“元素类型无效:预期为字符串(对于内置组件)或类/函数(对于复合组件),但得到:未定义。您可能忘记了从定义文件中导出组件,或者可能混淆了默认导入和命名导入。”
删除ReactReduxFirebaseProvider可以使我的应用程序呈现,但是它不会连接到数据库。我已经检查了所有默认值并命名了导出,但是仍然找不到问题。
index.js
import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import * as serviceWorker from './serviceWorker';
import App from './App';
import { createFirestoreInstance } from 'redux-firestore';
import { createStore, applyMiddleware, compose } from 'redux';
import { firebase} from './config/fbConfig';
import { Provider } from 'react-redux';
import { ReactReduxFirebaseProvider} from 'react-redux-firebase';
import rootReducer from './store/reducers/rootReducer';
import thunk from 'redux-thunk';
// react-redux-firebase config
const rrfConfig = {
userProfile: 'users',
useFirestoreForProfile: true
};
const store = createStore(
rootReducer,
compose(
applyMiddleware(thunk)
));
const rrfProps = {
firebase,
config: rrfConfig,
dispatch: store.dispatch,
createFirestoreInstance
};
ReactDOM.render(<Provider store={store}><ReactReduxFirebaseProvider {...rrfProps}><App/></ReactReduxFirebaseProvider></Provider>, document.getElementById('root'));
serviceWorker.unregister();
fbConfig
import firebase from 'firebase/app';
import 'firebase/firestore';
import 'firebase/auth';
const fbConfig = {}; // object containing my Firebase config
// Initialize Firebase
firebase.initializeApp(fbConfig);
const firestore = firebase.firestore();
const auth = firebase.auth();
export {
firebase,
firestore,
auth
};
我是刚接触Firebase的人,对反应和还原的反应还很新,所以可能犯了一个简单的错误,但是在盯着这个错误数小时后,我找不到解决方案。任何帮助将不胜感激。
答案 0 :(得分:0)
对我来说,解决方案是在项目的根目录中打开终端并运行:
npm install react-redux-firebase@next