关于react-native报错: Invariant Viol

import React, { Component } from 'react'
import {View } from "react-native"

/* 
    import {WebView} from "react-native" -- 当前最新版本已不支持
    react-native 0.6之后版本已从react-native移除WebView组件，
    按文档上步骤发现需要安装依赖项: react-native-webview及react-native-get-random-values
    npm i react-native-webview 
    npm i react-native-get-random-values
    或
    yarn add react-native-webview 
    yarn add react-native-get-random-values
 */
import 'react-native-get-random-values';
import { WebView } from "react-native-webview"


export default class App9 extends Component {
    render() {
        return (
            <WebView source={{uri: "https://m.jd.com/"}}></WebView>
        )
    }
}