无法实现 react-native-elements 表单?

Unable to implement the react-native-elements Forms?

我正在尝试创建一个可以在 react-native-elements 的帮助下获取用户名和电子邮件地址的表单,但它在渲染函数中给出了错误(不变违规:元素类型无效:需要一个字符串(对于内置组件)或 class/function(对于复合组件)但得到:未定义。您可能忘记从定义组件的文件中导出组件,或者您可能混淆了默认导入和命名导入)。

我尝试将 FormLabel、FormIput 和 FormValidationMessage 放入渲染函数中的视图和容器中,但它给了我一个我无法弄清楚的错误。

import React from 'react';  
import { View, StyleSheet} from "react-native";  
import { FormLabel, FormInput, FormValidationMessage } from 'react-native-elements'  

export default class UserDetailsInput extends React.Component {  

    render() {
        return (
        <View>
            <FormLabel>Name</FormLabel>
            <FormInput/>
            <FormValidationMessage>Error message</FormValidationMessage>
        </View>
    );
}};

package.json

{  
    "main": "node_modules/expo/AppEntry.js",  
    "scripts": {  
        "start": "expo start",  
        "android": "expo start --android",  
        "ios": "expo start --ios",  
        "eject": "expo eject"  
    },  
    "dependencies": {  
        "expo": "^32.0.0",  
        "native-base": "^2.12.1",  
        "react": "16.5.0",  
        "react-dom": "^16.8.6",  
        "react-native": "https://github.com/expo/react-native/archive/sdk-32.0.0.tar.gz",  
        "react-native-elements": "^1.1.0",  
        "react-native-otp-inputs": "^3.0.2"  
    },  
    "devDependencies": {  
        "babel-preset-expo": "^5.0.0"  
    },  
    "private": true  
}  

我要求将 react-native-elements 显示在 UI 上,与文档站点上显示的类似。
(来源:github.io

这些组件已在 React Native Elements 1.0 中重命名或删除,因此您的导入会产生 undefined。请看对应的release notes.