Reactjs StackRouter在react native中出错

我想在react native和react导航包中使用堆栈路由器 但是当我使用它时，我得到了这个错误

元素类型无效：内置组件应为字符串，复合组件应为类/函数，但Get:object。 实例化ActComponent D:\react native\AwesomeProject\node\u modules\react native\Libraries\Renderer\ReactNativeStack-dev.js:1984:75 埃奇尔德

我的代码：

 import React,{Component} from 'react'
 import {StyleSheet, Text, View, AppRegistry} from 'react-native'

 import{StackRouter} from 'react-navigation'
 export default class Activity extends Component {

constructor(props) {
    super(props);

}

render() {
    return (
        <Text> title:adsfdsf </Text>
    )
}
}

const AwesomeProject = StackRouter({
Home: {screen: Activity},

 }, {
initialRouteName: 'Home',
 })
 AppRegistry.registerComponent('AwesomeProject', () => AwesomeProject);

---

您从react navigation导入了错误的组件。是StackNavigator

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我想使用stackrouter而不是stackNavigator@kyle roachStackRouter是stackNavigator的底层API

import { StackNavigator } from 'react-navigation'

const AwesomeProject = StackRouter(
 {
   Home: {screen: Activity},
 }, 
 {
   initialRouteName: 'Home',
 }
)