我挣扎了一整天，找出如何建立apk。这是突然发生的。我不知道为什么，以前没有问题。这是我做的时候的错误
Flutter Build APK

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':unity_mediation:verifyReleaseResources'.
> A failure occurred while executing com.android.build.gradle.tasks.VerifyLibraryResourcesTask$Action
   > Android resource linking failed
     ERROR:/Users/bobbyjulian/.gradle/caches/transforms-3/a68f5ae822254b02ed9aba74a762d661/transformed/core-1.9.0/res/values/values.xml:104:5-113:25: AAPT: error: resource android:attr/lStar not found.

这里是我的/app/src/build. gradle。

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: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

def keystoreProperties = new Properties()
def keystorePropertiesFile = rootProject.file('key.properties')
if (keystorePropertiesFile.exists()) {
    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
}

android {
    compileSdkVersion 33

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    kotlinOptions {
        jvmTarget = '1.8'
    }

    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.thesimlife.thesimlife"
        minSdkVersion 21
        targetSdkVersion flutter.targetSdkVersion
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
    }

    signingConfigs {
        release {
            keyAlias keystoreProperties['keyAlias']
            keyPassword keystoreProperties['keyPassword']
            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
            storePassword keystoreProperties['storePassword']
        }
    }
    buildTypes {
        release {
            signingConfig signingConfigs.release
        }
    }
}

flutter {
    source '../..'
}
apply plugin: 'com.google.gms.google-services'

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation "com.unity3d.mediation:adcolony-adapter:1.0.0"
    implementation "com.unity3d.mediation:applovin-adapter:1.0.0"
    implementation "com.unity3d.mediation:vungle-adapter:1.0.1"
    implementation "com.unity3d.mediation:facebook-adapter:1.0.0"
    implementation "com.unity3d.mediation:admob-adapter:1.0.0"
}

build.gradle（我已经更改了Kotlin_version，但没有成功）

buildscript {
    ext.kotlin_version = '1.7.20'
    repositories {
        google()
        mavenCentral()
        maven {
            url 'https://unity3ddist.jfrog.io/artifactory/unity-mediation-mvn-prod-local/'
        }
    }

    dependencies {
        //classpath 'com.android.tools.build:gradle:4.1.0'
        classpath 'com.android.tools.build:gradle:7.1.2'
        classpath 'com.google.gms:google-services:4.3.10'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
        maven {
            url 'https://unity3ddist.jfrog.io/artifactory/unity-mediation-mvn-prod-local/'
        }
    }
}

rootProject.buildDir = '../build'
subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
    project.evaluationDependsOn(':app')
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

奇怪的是，我可以建立apk调试
flutter build apk --debug
正在运行Gradle任务“assembleDebug”... Built build/app/outputs/flutter-apk/app-debug. apk.
然后是appbundle
flutter build appbundle
正在运行Gradle任务“bundleRelease”... Built build/app/outputs/bundle/release/app-release.aab（45.4MB）.
结果
flutter doctor -v

[✓] Flutter (Channel stable, 3.7.12, on macOS 13.1 22C65 darwin-arm64, locale
    en-ID)
    • Flutter version 3.7.12 on channel stable at
      /Users/bobbyjulian/Desktop/development/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 4d9e56e694 (3 weeks ago), 2023-04-17 21:47:46 -0400
    • Engine revision 1a65d409c7
    • Dart version 2.19.6
    • DevTools version 2.20.1

[✓] Android toolchain - develop for Android devices (Android SDK version
    32.1.0-rc1)
    • Android SDK at /Users/bobbyjulian/Library/Android/sdk
    • Platform android-33, build-tools 32.1.0-rc1
    • Java binary at: /Applications/Android
      Studio.app/Contents/jre/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build
      11.0.12+0-b1504.28-7817840)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 14.2)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 14C18
    • CocoaPods version 1.11.3

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2021.2)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build
      11.0.12+0-b1504.28-7817840)

[✓] VS Code (version 1.70.1)
    • VS Code at /Users/bobbyjulian/Downloads/Visual Studio Code.app/Contents
    • Flutter extension can be installed from:
      🔨 https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[✓] Connected device (3 available)
    • iPhone 14 Pro (mobile) • 507F3DEA-5963-452F-8CB0-10969F21BB18 • ios
      • com.apple.CoreSimulator.SimRuntime.iOS-16-2 (simulator)
    • macOS (desktop)        • macos                                •
      darwin-arm64   • macOS 13.1 22C65 darwin-arm64
    • Chrome (web)           • chrome                               •
      web-javascript • Google Chrome 112.0.5615.137

[✓] HTTP Host Availability
    • All required HTTP hosts are available

• No issues found!

我真的很感激任何帮助。
解决build apk问题！