我的 app/build.gradle 上这个错误的解决方案是什么答案

【问题标题】：what could be the solution to this error on my app/build.gradle我的 app/build.gradle 上这个错误的解决方案是什么
【发布时间】：2021-07-08 20:27:24
【问题描述】：

我的 app\build.gradle 文件出现以下错误，我不知道可能是什么解决方案。下面附上代码sn-p.code snippet of the app\build.gradle file

在 Properties() 下面的代码中，GradleException 似乎不存在或被识别。这是一个颤振项目，那里的代码是默认代码。

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 plugin: 'com.google.gms.google-services'
apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

android {
    compileSdkVersion 30

    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "com.example.recipe_app"
        minSdkVersion 16
        targetSdkVersion 30
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
    }

    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 {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation platform('com.google.firebase:firebase-bom:28.2.0')
    implementation 'com.google.firebase:firebase-analytics-ktx'
}

【问题讨论】：

标签： android flutter gradle

【解决方案1】：

来那些红线没关系，我相信这仍然会毫无问题地运行，如果有错误日志，请分享，

【讨论】：