splashscreen代码如下：

import React from "react";
import { Animated,Easing } from "react-native";
import LottieView from "lottie-react-native";
import { NavigationActions } from "react-navigation";

export default class SplashScreen extends React.Component {
  static navigationOptions = {
    header: null
  };

  constructor() {
    super();
    this.state = {
      progress: new Animated.Value(0),}
  }

  componentDidMount() {
    setTimeout(() => {
      this.navigateToWalkthrough()
    },3500);
    
    Animated.timing(this.state.progress,{
      toValue: 1,duration: 3000,easing: Easing.linear,}).start();
  }

  navigateToWalkthrough = () => {
    const navigateAction = NavigationActions.reset({
      index: 0,actions: [NavigationActions.navigate({ routeName: "Walkthrough" })],});

    this.props.navigation.dispatch(navigateAction);
  }

  render() {
    return(
      <LottieView 
      source={require("../assets/splash/SplashScreenAnimation.json")}
      progress={this.state.progress}
      />
    );
  }
}

我运行应用程序后出现错误：

undefined is not a function (evaluating'_reactNavigation.NavigationActions.reset')

Main.js文件如下所示：

import React from "react";
import { View,Text } from "react-native";
import { createStackNavigator } from "react-navigation";

import SplashScreen from "./screens/SplashScreen";
import Walkthrough from "./screens/Walkthrough";

const Routes = createStackNavigator({
  Home: {
    screen: SplashScreen
  },Walkthrough: {
    screen: Walkthrough
  }
});

export default class Main extends React.Component {
  render() {
    return <Routes />;
  }
}

任何帮助/反馈？