Missing google_app_id. Firebase Analytics disabled

Question

I have created a new Flutter project and created Firebase apps using flutterfire configure, Analytics works perfectly fine in iOS, but the android app didin't trigger analytics even a single time. It's been 7 days. Initially, i thought the delay in event but it's not working at all.

I have added Crashlytics as well, but that's working for both Android and iOS.

<project>/build.gradle

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

    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

        // Google services
        classpath 'com.google.gms:google-services:4.4.1'
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
    }
}

...other stuff

<project>/app/build.gradle

plugins {
    id "com.android.application"
    id 'com.google.gms.google-services'
    id "kotlin-android"
    id "dev.flutter.flutter-gradle-plugin"
}

...other stuff

as for error information, I'm only getting

E/FA (15604): Missing google_app_id. Firebase Analytics disabled. See ####

Tried so far

1. Manually added google-services.json
2. Manually added google_app_id in strings.xml
3. I have added manually in both build.gradle files, flutterfire configure not adding anything in these files
4. Using the latest version of flutterfire = 0.2.7

Can anyone help me to add Firebase analytics in flutter app?

Answer 1

I recently had the same problem. The issue (at least for me) did come from an outdated version of the flutterfire tool. Since it did not work with the new style of applying plugins.

You can upgrade it by running:
dart pub global activate flutterfire_cli 1.0.0 --overwrite

It changed the following parts of my project: settings.gradle

Old:

...
plugins {
    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
    id "com.android.application" version "7.3.0" apply false
}
...

New:

...
plugins {
    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
    id "com.android.application" version "7.3.0" apply false
    // START: FlutterFire Configuration
    id "com.google.gms.google-services" version "4.3.15" apply false
    id "com.google.firebase.firebase-perf" version "1.4.1" apply false
    id "com.google.firebase.crashlytics" version "2.8.1" apply false
    // END: FlutterFire Configuration
}
...

As well as the android/app/build.gradle at the very top of the file.

Old:

plugins {
    id "com.android.application"
    id "kotlin-android"
    id "dev.flutter.flutter-gradle-plugin"
}
...

New:

plugins {
    id "com.android.application"
    // START: FlutterFire Configuration
    id 'com.google.gms.google-services'
    id 'com.google.firebase.firebase-perf'
    id 'com.google.firebase.crashlytics'
    // END: FlutterFire Configuration
    id "kotlin-android"
    id "dev.flutter.flutter-gradle-plugin"
}
...

Hope this helps and you can fix the issue ;)