Overnight I had this problem. Here is my 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: 'com.google.gms.google-services'
apply plugin: 'kotlin-android'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

android {
    compileSdkVersion 30

    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.example.game_rewards"
        minSdkVersion 16
        targetSdkVersion 30
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        multiDexEnabled true
    }
}

flutter {
    source '../..'
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'com.android.support:multidex:1.0.3'
    classpath 'com.android.tools.build:gradle:3.3.2'
    classpath 'com.google.gms.google-services:4.3.10'

}

My error is :

Build file 'C:\Users\antoi\Documents\programmation\langages\flutter\game_rewards\android\build.gradle' line: 12

• What went wrong: A problem occurred evaluating root project 'android'.

Plugin with id 'com.google.gms.google-services' not found.

I don't know why and can you please help me correct the errors. Thank you for your reply

CodePudding user response：

The error says that the plugin is not found because it is not added as dependency. You added the line but in a wrong place. Follow below for correcting it.

This is the link you followed to initialize https://firebase.flutter.dev/docs/manual-installation/android

Your code: (android/app/build.gradle)

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'com.android.support:multidex:1.0.3'
    classpath 'com.android.tools.build:gradle:3.3.2'
    classpath 'com.google.gms.google-services:4.3.10'
}

classpath 'com.google.gms.google-services:4.3.10'

This line in the above code causes the issue. From the initialisation, this line shouldn't be here and instead be in android/build.gradle

So, this part should look like

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'com.android.support:multidex:1.0.3'
    classpath 'com.android.tools.build:gradle:3.3.2'
}

Add this below line to android/build.gradle

classpath 'com.google.gms.google-services:4.3.10'

which should look like

buildscript {
  dependencies {
    // ... other dependencies
    classpath 'com.google.gms:google-services:4.3.8' // your version
  }
}

The above is directly from the link.

CodePudding user response：

Please update your gradle version in build.gradle under project directory and rebuild again.

buildscript {
    repositories {
        // Gradle 4.1 and higher include support for Google's Maven repo using
        // the google() method. And you need to include this repo to download
        // Android Gradle plugin 3.0.0 or higher.
        google()
        ...
    }
    dependencies {
        classpath("com.android.tools.build:gradle:7.0.0")
    }
}

You can check detail in here
https://developer.android.com/studio/releases/gradle-plugin