使用Visual Studio Code在Flutter上运行Gradle时出错

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在 https://help.gradle.org

在7秒内失败了
命令：C：\Users\IB\Desktop\Android\myapp\berry_networks\Dart测试\Flutter App\first_flutter_app\android\gradlew.bat app：properties

BUILD FAILED in 7s Command: C:\Users\IB\Desktop\Android\myapp\berry_networks\Dart test\Flutter App\first_flutter_app\android\gradlew.bat app:properties

请在android /文件夹中查看您的Gradle项目设置。
已退出（sigterm）

Please review your Gradle project setup in the android/ folder. Exited (sigterm)

我该如何解决？

@iRuth

这是我在Visual Studio代码上的 app / build.gradle

This is my app/build.gradle on Visual Studio Code

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'   (This is line 24)
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.kkkkkkkk"
        minSdkVersion 16
        targetSdkVersion 28
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            // TODO: Add your own signing config for the release build.
            // Signing with the debug keys for now, so `flutter run --release` works.
            signingConfig signingConfigs.debug
        }
    }
}

flutter {
    source '../..'
}

dependencies {
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}