Flutter中Missing google_app_id致Firebase Analytics禁用问题求助

Crashlytics可正常工作，但Firebase Analytics持续抛出「Missing google_app_id. Firebase Analytics disabled」错误，无任何数据记录，Debug View也无法查看上报信息。已尝试StackOverflow所有方案、通过FlutterFire CLI配置应用、确认google-services.json无误、导入core/crashlytics/analytics包，但问题依旧。

当前配置文件 #

项目根目录 build.gradle #

buildscript {
    ext.kotlin_version = '1.7.10'
    repositories {
        google()
        mavenCentral()
    }

    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'com.android.tools.build:gradle:8.1.2'
        classpath 'com.google.gms:google-services:4.4.0'
        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.7.1'
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
        maven {
            url "https://phonepe.mycloudrepo.io/public/repositories/phonepe-intentsdk-android"
        }
    }
}

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

tasks.register("clean", Delete) {
    delete rootProject.buildDir
}

app模块 build.gradle #

plugins {
    id "com.android.application"
    id "com.google.gms.google-services" apply true
    id "kotlin-android"
    id "dev.flutter.flutter-gradle-plugin"
    // Make sure that you have the Google services Gradle plugin
//    id 'com.google.gms.google-services'
    // Add the Crashlytics Gradle plugin
//    id 'com.google.firebase.crashlytics'
}

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

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

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

android {
    namespace "com.jbullsinfotech.flutter_template"
    compileSdkVersion 34
    ndkVersion flutter.ndkVersion

    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.jbullsinfotech.flutter_template"
        // You can update the following values to match your application needs.
        // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
        minSdkVersion 23
        targetSdkVersion flutter.targetSdkVersion
        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 {
    // Import the BoM for the Firebase platform
//    implementation(platform("com.google.firebase:firebase-bom:32.7.0"))

    // Add the dependencies for the Crashlytics and Analytics libraries
    // When using the BoM, you don't specify versions in Firebase library dependencies
//    implementation("com.google.firebase:firebase-crashlytics")
//    implementation("com.google.firebase:firebase-analytics")

    // This dependency is downloaded from the Google’s Maven repository.
    // So, make sure you also include that repository in your project's build.gradle file.
    implementation 'com.google.android.play:app-update:2.1.0'
    // For Kotlin users also add the Kotlin extensions library for Play In-App Update:
    implementation 'com.google.android.play:app-update-ktx:2.1.0'
}

// This must appear at the bottom of the file
//apply plugin: 'com.google.firebase.crashlytics'

修复步骤 #

1. 启用Firebase BOM与Analytics依赖
   当前app/build.gradle中注释了Firebase BOM和Analytics依赖，导致Analytics资源无法正确引入。取消注释相关配置：

   dependencies {
       // 导入Firebase平台BOM
       implementation(platform("com.google.firebase:firebase-bom:32.7.0"))
   
       // 添加Crashlytics和Analytics依赖（使用BOM无需指定版本）
       implementation("com.google.firebase:firebase-crashlytics")
       implementation("com.google.firebase:firebase-analytics")
   
       // 其他依赖保持不变
       implementation 'com.google.android.play:app-update:2.1.0'
       implementation 'com.google.android.play:app-update-ktx:2.1.0'
   }
   

2. 正确应用Crashlytics插件
   虽然Crashlytics当前可用，但注释的插件声明可能影响Analytics联动。在app/build.gradle的plugins块中取消注释Crashlytics插件，并删除文件底部重复的注释语句：

   plugins {
       id "com.android.application"
       id "com.google.gms.google-services" apply true
       id "kotlin-android"
       id "dev.flutter.flutter-gradle-plugin"
       // 启用Crashlytics插件
       id 'com.google.firebase.crashlytics'
   }
   

3. 验证google-services.json配置

   • 确认文件放置在app/目录下，而非项目根目录。
   • 检查文件中mobilesdk_app_id和project_id与Firebase控制台当前应用信息完全匹配。
   • 确保文件未被.gitignore排除，构建时能被Gradle正常读取。

4. 清理缓存并重新构建
   执行以下命令清理旧缓存，避免配置不生效：

   flutter clean
   cd android && ./gradlew clean build --refresh-dependencies
   cd .. && flutter run
   

5. 检查Flutter端初始化代码
   确保正确初始化Firebase核心并启用Analytics：

   import 'package:firebase_core/firebase_core.dart';
   import 'package:firebase_analytics/firebase_analytics.dart';
   import 'package:flutter/material.dart';
   
   void main() async {
       WidgetsFlutterBinding.ensureInitialized();
       await Firebase.initializeApp();
       // 初始化Analytics并发送测试事件
       FirebaseAnalytics analytics = FirebaseAnalytics.instance;
       await analytics.logEvent(name: 'app_launch');
       runApp(const MyApp());
   }
   

6. 激活Debug View验证

   • 确保测试设备与Firebase控制台处于同一网络。
   • 在设备上执行命令启用Debug模式：

     adb shell setprop debug.firebase.analytics.app com.jbullsinfotech.flutter_template
     

   • 重启应用后，查看Firebase控制台Debug View是否有事件上报。

内容的提问来源于stack exchange，提问作者J Bulls Infotech