FireFlutter依赖引发Kotlin-Gradle插件版本不兼容问题求助

问题核心 #

你的项目因FireFlutter依赖间接引入的sign_in_with_apple插件要求kotlin-gradle-plugin:1.3.50，但该旧版本与当前项目的Gradle配置、compileSdk版本不兼容，导致构建失败。移除FireFlutter虽能构建，但会丢失通知功能，必须通过统一依赖版本来解决冲突。

解决方案 #

1. 统一根目录build.gradle的Kotlin版本 #

找到项目根目录下的build.gradle文件（非app模块下的），在buildscript块中明确指定与compileSdk 33兼容的Kotlin版本，替换动态版本：

buildscript {
    ext.kotlin_version = '1.7.20' // 推荐1.7.x系列，适配compileSdk 33
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:7.4.2" // 确保Gradle版本与Kotlin版本匹配
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'com.google.gms:google-services:4.3.15'
    }
}

2. 强制所有依赖使用统一Kotlin版本 #

在你提供的app模块build.gradle中，添加版本强制策略，避免依赖间的版本冲突：
在android块内插入：

configurations.all {
    resolutionStrategy {
        force "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        force "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
        force "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    }
}

3. 更新FireFlutter到最新稳定版 #

打开pubspec.yaml，将FireFlutter依赖更新到官方最新稳定版，新版通常会修复依赖兼容问题：

dependencies:
  fireflutter: ^最新稳定版本号

4. 彻底清理缓存并重新构建 #

执行以下命令清除旧缓存，确保依赖完全刷新：

flutter clean
# Windows用户删除C:\Users\你的用户名\.gradle\caches
rm -rf ~/.gradle/caches 
flutter pub get
cd android && ./gradlew clean build --refresh-dependencies

修改后的app模块build.gradle参考 #

关键修改后的完整文件如下：

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 = '26'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.1.2'
}

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
apply plugin: 'applovin-quality-service'
applovin {
    apiKey "**********"
}
def keystoreProperties = new Properties()
def keystorePropertiesFile = rootProject.file('key.properties')
if (keystorePropertiesFile.exists()) {
    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
}

android {
    compileSdkVersion 33
    ndkVersion flutter.ndkVersion

    // 添加版本强制策略
    configurations.all {
        resolutionStrategy {
            force "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
            force "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
            force "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
        }
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    kotlinOptions {
        jvmTarget = '1.8'
    }

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

    defaultConfig {
        applicationId "*********"
        minSdkVersion 23
        targetSdkVersion 31
        versionCode 26
        versionName "1.1.2"
        multiDexEnabled true
    }

    signingConfigs {
        release {
            keyAlias keystoreProperties['keyAlias']
            keyPassword keystoreProperties['keyPassword']
            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
            storePassword keystoreProperties['storePassword']
        }
    }
    buildTypes {
        release {
            signingConfig signingConfigs.release
        }
    }
    dexOptions {
        javaMaxHeapSize "2G"
    }
}

flutter {
    source '../..'
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'com.google.android.gms:play-services-ads:21.1.0'
    implementation 'com.android.support:multidex:1.0.3'
    implementation 'com.applovin:applovin-sdk:+'
}
apply plugin: 'com.google.gms.google-services'

内容的提问来源于stack exchange，提问作者Zedicus Ténèbres