react native 错误集合

作者: IT宝哥哥 | 来源:发表于2019-12-07 19:41 被阅读0次

环境

os: mac 10.13
react-native-cli: 2.0.1
react-native: 0.61.5
nodejs:v13.1.0
模拟器：网易mumu模拟器

新建的项目未设置Android SDK路径，运行react-native run-android模拟器无法打开app

info Running jetifier to migrate libraries to AndroidX. You can disable it using "--no-jetifier" flag.
Jetifier found 864 file(s) to forward-jetify. Using 6 workers...
info Starting JS server...
* daemon not running; starting now at tcp:5037
* daemon started successfully
info Installing the app...
Starting a Gradle Daemon (subsequent builds will be faster)

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':app'.
> SDK location not found. Define location with an ANDROID_SDK_ROOT environment variable or by setting the sdk.dir path in your project's local properties file at '/Volumes/mnt/code/myApp/android/local.properties'.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 7s

error Failed to install the app. Make sure you have the Android development environment set up: https://facebook.github.io/react-native/docs/getting-started.html#android-development-environment. Run CLI with --verbose flag for more details.
Error: Command failed: ./gradlew app:installDebug -PreactNativeDevServerPort=8081

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':app'.
> SDK location not found. Define location with an ANDROID_SDK_ROOT environment variable or by setting the sdk.dir path in your project's local properties file at '/Volumes/mnt/code/myApp/android/local.properties'.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 7s

    at checkExecSyncError (child_process.js:603:11)
    at execFileSync (child_process.js:621:15)
    at runOnAllDevices (/Volumes/mnt/code/myApp/node_modules/@react-native-community/cli-platform-android/build/commands/runAndroid/runOnAllDevices.js:94:39)
    at buildAndRun (/Volumes/mnt/code/myApp/node_modules/@react-native-community/cli-platform-android/build/commands/runAndroid/index.js:158:41)
    at /Volumes/mnt/code/myApp/node_modules/@react-native-community/cli-platform-android/build/commands/runAndroid/index.js:125:12
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
    at async Command.handleAction (/Volumes/mnt/code/myApp/node_modules/@react-native-community/cli/build/index.js:164:9)

在项目根目录下（package.json所在的目录），android/下新建local.properties文件，配置如下内容:

sdk.dir = /Users/zlbao/Library/Android/sdk  #mac安装AndroidStudio后默认会自动从google下载sdk（需要梯子），也可以自己下载后配置环境变量

安装pod install卡住不动

我也碰到这种问题，排查过后，是由于网络原因， 无法下载cocoapods导致的。 怎么办呢？咱们可以换一个源头， 类似于npm中的cnpm 。
第一步： 开始安装Cocoapods
sudo gem install cocoapods//或者brew install cocoapods
第二步：
切换 镜像cocoapods镜像： git clone https://mirrors.tuna.tsinghua.edu.cn/git/CocoaPods/Specs.git master
第三部：
初始化你的项目： react-native init MyApp
项目初始化还是会卡住。
第四部 ，按照提示 执行： cd ./MyApp/ios && pod install
在第三步之后 ./ios/Podfile 顶部添加一行： source 'https://mirrors.tuna.tsinghua.edu.cn/git/CocoaPods/Specs.git'

安装mumu虚拟机后adb devices不显示（windows）

//如果你的android环境能够直接访问 adb 的相关指令.只需要把mumu模拟器打开 然后打开cmd -> 输入 
adb connect 127.0.0.1:7555 //win就能直接连上mumu模拟器了
adb kill-server && adb server && adb shell//mac
//如果不能运行adb，那么说明Android sdk没有安装或者环境变量没有配置

image.png

安装intel haxm error失败（错误），导致无法使用AndroidStudio的虚拟机
a. 将VT、虚拟化关闭（bios）
b. 安装intel haxm，如果安装成功，那么再次重新开启上面关闭的功能
c. hyper-v始终保持关闭状态
运行错误react-native start
将nodejs降级到v12.8.0，v12.13出现错误
react-native-video 不能播放 m3u8 文件
插件：
react-native-video
react-native-video-controls
react-native-vector-icons//controls依赖
settings.gradle

rootProject.name = 'myApp3'
include ':react-native-vector-icons'
project(':react-native-vector-icons').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-vector-icons/android')
include ':react-native-video'
project(':react-native-video').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-video/android-exoplayer')
apply from: file("../node_modules/@react-native-community/cli-platform-android/native_modules.gradle"); applyNativeModulesSettingsGradle(settings)
include ':app'
//特别注意include ':react-native-video'
project(':react-native-video').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-video/android-exoplayer')，最后是android-exoplayer,默认link是android

/**
 * Sample React Native App
 * https://github.com/facebook/react-native
 *
 * @format
 * @flow
 */

import React from 'react';
import {
    SafeAreaView,
    StyleSheet,
    ScrollView,
    View,
    Text,
    StatusBar,
    Dimensions,
    TextInput,
    TouchableOpacity, Image, Touchable, TouchableWithoutFeedback,
} from 'react-native';

import {
    Header,
    LearnMoreLinks,
    Colors,
    DebugInstructions,
    ReloadInstructions,
} from 'react-native/Libraries/NewAppScreen';
import Video from 'react-native-video';//插件

import VideoPlayer from 'react-native-video-controls';//插件

const screenWidth = Dimensions.get('window').width;
const navs = [
    '首页',
    '首页1',
];
export default class App extends React.Component {
    constructor(props) {
        super(props);
        this.state = {
            navIndex: 0,
            countDownStart: false,
            countDown: 60,
            rate: 1,
            volume: 1,
            muted: false,
            resizeMode: 'contain',
            duration: 0.0,
            currentTime: 0.0,
            paused: true,
        };
        video: Video;
    }

    render() {
        const flexCompleted = this.getCurrentTimePercentage() * 100;
        const flexRemaining = (1 - this.getCurrentTimePercentage()) * 100;
        var Arr = navs.map((item, index) => {
            // console.log('item:', item, 'index:', index);
            return (
                <TouchableWithoutFeedback key={index} onPress={() => this.handleClickNavItem(item, index)}>
                    <View style={styles.navitem}>
                        <Text style={index === this.state.navIndex ? styles.navitemActive : ''}>首页</Text>
                    </View>
                </TouchableWithoutFeedback>
            );
        });
        let url = 'http://xxx.mp4';
        // url = 'http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8';//ok
        return (
            <>
                <StatusBar barStyle="dark-content"/>
                <SafeAreaView>
                    <ScrollView>
                        {false ? (
                {/**Video安卓不带控制条等,VideoPlayer带控制条**/}
                            <Video
                                //source={{uri: url}}   // Can be a URL or a local file.
                                //     source={require('./assets/videoplayback.mp4')}//check
                                //     source={{uri:url}}//Check
                                source={{
                                    uri: url, type: 'm3u8', headers: {
                                        Referer: 'https://www.google.com/',
                                    },
                                }}
                                ref={(ref: Video) => {
                                    this.video = ref;
                                }}                                      // Store reference
                                onBuffer={this.onBuffer}                // Callback when remote video is buffering
                                onError={this.videoError}               // Callback when video cannot be loaded
                                style={styles.backgroundVideo}
                                rate={1}
                                resizeMode={'cover'}/>
                        ) : (
                            <VideoPlayer
                                //source={require('./assets/videoplayback.mp4')}
                                source={{
                                    uri: url, type: 'm3u8', headers: {
                                        Referer: 'https://www.google.com/',
                                    },
                                }}///不能用
                                onBuffer={this.onBuffer}                // Callback when remote video is buffering
                                onError={this.videoError}               // Callback when video cannot be loaded
                                style={styles.backgroundVideo}
                                rate={1}
                                resizeMode={'cover'}/>
                        )}
                        <Text>test</Text>
                    </ScrollView>
                </SafeAreaView>
            </>
        );
    }

    onBuffer = () => {
        alert('onBuffer');
    };
    videoError = (e) => {
        console.log('e', e);
        alert(e);
    };
    handleClickNavItem = (ev, index) => {
        console.log('ev:', ev);
        console.log('index:', index);
        this.setState({
            navIndex: index,
        });
    };
    handleGetSmsCode = () => {
        // alert('get code')
        if (this.state.countDownStart === true) {
            console.log('已开始');
            return;
        }
        this.setState({
            countDownStart: true,
            countDown: this.state.countDown - 1,
        });
        let inter1 = setInterval(() => {
            if (this.state.countDown > 0) {
                this.setState({
                    countDownStart: true,
                    countDown: this.state.countDown - 1,
                });
            } else {
                clearInterval(inter1);
                this.setState({
                    countDown: 60,
                    countDownStart: false,
                });
            }
        }, 1000);
    };
    onLoad = (data) => {
        this.setState({duration: data.duration});
    };

    onProgress = (data) => {
        this.setState({currentTime: data.currentTime});
    };

    onEnd = () => {
        this.setState({paused: true});
        this.video.seek(0);
    };

    onAudioBecomingNoisy = () => {
        this.setState({paused: true});
    };

    onAudioFocusChanged = (event: { hasAudioFocus: boolean }) => {
        this.setState({paused: !event.hasAudioFocus});
    };

    getCurrentTimePercentage() {
        if (this.state.currentTime > 0) {
            return parseFloat(this.state.currentTime) / parseFloat(this.state.duration);
        }
        return 0;
    };

    renderRateControl(rate) {
        const isSelected = (this.state.rate === rate);

        return (
            <TouchableOpacity onPress={() => {
                this.setState({rate});
            }}>
                <Text style={[styles.controlOption, {fontWeight: isSelected ? 'bold' : 'normal'}]}>
                    {rate}x
                </Text>
            </TouchableOpacity>
        );
    }

    renderResizeModeControl(resizeMode) {
        const isSelected = (this.state.resizeMode === resizeMode);

        return (
            <TouchableOpacity onPress={() => {
                this.setState({resizeMode});
            }}>
                <Text style={[styles.controlOption, {fontWeight: isSelected ? 'bold' : 'normal'}]}>
                    {resizeMode}
                </Text>
            </TouchableOpacity>
        );
    }

    renderVolumeControl(volume) {
        const isSelected = (this.state.volume === volume);

        return (
            <TouchableOpacity onPress={() => {
                this.setState({volume});
            }}>
                <Text style={[styles.controlOption, {fontWeight: isSelected ? 'bold' : 'normal'}]}>
                    {volume * 100}%
                </Text>
            </TouchableOpacity>
        );
    }
};

const styles = StyleSheet.create({
    backgroundVideo: {
        // position: 'absolute',
        // top: 0,
        // left: 0,
        // bottom: 0,
        // right: 0,
        // backgroundColor:'red',
        borderWidth: 1,
        height: 200,
        minHeight: 200,
        width: 300,
        minWidth: 300,
    },
    //---------------------
    yknav: {
        height: 27.59,
        marginTop: 9,
        marginBottom: 9,
    },

    headernav: {
        paddingLeft: 15,
        flex: 0,
        flexDirection: 'row',
        justifyContent: 'space-around',
    },
    navitem: {
        paddingRight: 33.12,
    },
    navitemActive: {
        color: '#24a5ff',
    },
    image: {
        width: 20, height: 20,
        marginRight: 10,
    },
    //-------------------
    loginForm: {
        /// 414 / 331.22 比例 1:0.8
        width: screenWidth * 0.8,
    },
    formItem: {
        marginBottom: 10,
        width: '100%',
    },
    fmMobile: {
        paddingHorizontal: 15,
        borderColor: '#e9e9e9',
        borderWidth: 1,
        borderRadius: 44,
        width: '100%',
        height: 42,
        lineHeight: 42,
        paddingTop: 10,//android
    },
    fmSMSCode: {
        paddingHorizontal: 15,
        borderColor: '#e9e9e9',
        borderWidth: 1,
        borderRadius: 44,
        width: '100%',
        height: 42,
        lineHeight: 42,
        paddingTop: 10,//android
        flex: 0,
        flexDirection: 'row',
        justifyContent: 'center',
    },
    sendBtn: {
        position: 'absolute',
        right: 15,
        height: 42,
    },
    sendBtnLink: {
        color: '#08c',
        height: 42,
        lineHeight: 42,
    },
    fmBtn: {
        backgroundColor: '#2692ff',
        borderRadius: 44,
        width: '100%',
        height: 42,
    },
    fmBtnLogin: {
        textAlign: 'center',
        lineHeight: 42,
        height: 42,
        color: '#fff',
    },
    //-------------------
    scrollView: {
        backgroundColor: Colors.lighter,
    },
    engine: {
        position: 'absolute',
        right: 0,
    },
    body: {
        backgroundColor: Colors.white,
    },
    sectionContainer: {
        marginTop: 32,
        paddingHorizontal: 24,
    },
    sectionTitle: {
        fontSize: 24,
        fontWeight: '600',
        color: Colors.black,
    },
    sectionDescription: {
        marginTop: 8,
        fontSize: 18,
        fontWeight: '400',
        color: Colors.dark,
    },
    highlight: {
        fontWeight: '700',
    },
    footer: {
        color: Colors.dark,
        fontSize: 12,
        fontWeight: '600',
        padding: 4,
        paddingRight: 12,
        textAlign: 'right',
    },
    container: {
        flex: 1,
        justifyContent: 'center',
        alignItems: 'center',
        backgroundColor: 'black',
    },
    fullScreen: {
        position: 'absolute',
        top: 0,
        left: 0,
        bottom: 0,
        right: 0,
    },
    controls: {
        backgroundColor: 'transparent',
        borderRadius: 5,
        position: 'absolute',
        bottom: 20,
        left: 20,
        right: 20,
    },
    progress: {
        flex: 1,
        flexDirection: 'row',
        borderRadius: 3,
        overflow: 'hidden',
    },
    innerProgressCompleted: {
        height: 20,
        backgroundColor: '#cccccc',
    },
    innerProgressRemaining: {
        height: 20,
        backgroundColor: '#2C2C2C',
    },
    generalControls: {
        flex: 1,
        flexDirection: 'row',
        borderRadius: 4,
        overflow: 'hidden',
        paddingBottom: 10,
    },
    rateControl: {
        flex: 1,
        flexDirection: 'row',
        justifyContent: 'center',
    },
    volumeControl: {
        flex: 1,
        flexDirection: 'row',
        justifyContent: 'center',
    },
    resizeModeControl: {
        flex: 1,
        flexDirection: 'row',
        alignItems: 'center',
        justifyContent: 'center',
    },
    controlOption: {
        alignSelf: 'center',
        fontSize: 11,
        color: 'white',
        paddingLeft: 2,
        paddingRight: 2,
        lineHeight: 12,
    },
});

一开始测试本地mp4,网络mp4都可以播放，唯独不能播放m3u8文件，安卓5.0的模拟器花屏，需要使用高等级的或者使用mumu模拟器。以为是插件不支持，浪费了半天时间，发现是m3u8文件的问题，网络上的资源好多都不能直接播放（貌似和跨域或者认证有关），需要收集可以使用的m3u8才能播放，http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8这个视频是可以播放的

花屏

react native 错误集合

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