Android Studio无法正确构建Flutter应用 [英] Android Studio is not building flutter app correctly

问题描述

我有一个正在使用的应用程序，当我打开build.gradle文件时 出现了几个错误

I have an app I'm working on and when I open build.gradle file Several errors appeared

def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.0'
}

apply plugin: 'com.android.application'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

android {
    compileSdkVersion 28

    lintOptions {
        disable 'InvalidPackage'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "com.example.shopapp"
        minSdkVersion 16
        targetSdkVersion 28
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            signingConfig signingConfigs.debug
        }
    }
}

flutter {
    source '../..'
}

dependencies {
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
}

控制台输出:

以调试模式在IA仿真器上的AOSP上启动lib \ main.dart ... 正在运行Gradle任务"assembleDebug" ...

Launching lib\main.dart on AOSP on IA Emulator in debug mode... Running Gradle task 'assembleDebug'...

失败:构建失败，并出现异常.

FAILURE: Build failed with an exception.

• 出了什么问题:任务':app:stripDebugDebugSymbols'的执行失败.

• What went wrong: Execution failed for task ':app:stripDebugDebugSymbols'.

没有NDK版本与请求的版本20.0.5594570相匹配.本地可用版本:21.0.6113669

No version of NDK matched the requested version 20.0.5594570. Versions available locally: 21.0.6113669

尝试:使用--stacktrace选项运行以获取堆栈跟踪.使用--info或--debug选项运行，以获取更多日志输出.与--scan一起运行以获得完整的见解.

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.

在 https://help.gradle.org

在1秒钟内构建失败，并完成以下错误:Gradle任务assembleDebug 失败，退出代码为1

BUILD FAILED in 1s Finished with error: Gradle task assembleDebug failed with exit code 1

logcat中也有一条消息 Please configure Android SDK 我正在寻找解决方案，却没有找到解决方案

Also there is a message in logcat Please configure Android SDK I looked for a solution and did not find a solution for it

我只需要帮助，不知道是否因为我不会流利的英语而违反了网站法律

I just need help and don't know if I have violated the laws of the site because I do not speak English fluently

推荐答案

解决方案之一就是这个，

one of the solutions is this,

def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.0'
}

apply plugin: 'com.android.application'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

android {
    compileSdkVersion 28

lintOptions {
    disable 'InvalidPackage'
}

defaultConfig {
    // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
    applicationId "com.example.shopapp"
    minSdkVersion 16
    targetSdkVersion 28
    versionCode flutterVersionCode.toInteger()
    versionName flutterVersionName
    testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}

buildTypes {
    release {
        signingConfig signingConfigs.debug
    }
}

ndkVersion "21.0.6113669" ///  <<---Add this, 



}

flutter {
    source '../..'
}

dependencies {
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
}

原因是因为您已经安装了其他NDK，而android studio具有其他版本，其他解决方案是->转到sdk工具，并卸载NDK和Cmake.

The reason is because you have installed other NDK, and android studio has other version, the other solutions is, -> Go to sdk tools, and uninstall NDK and Cmake.

对不起，我的英语不是我的母语.祝你好运！

Sorry for my english, im not native speaker. Good luck!

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