I didn't find proper solution google-service-plugin version conflict

Question

I didn't find proper solution to google-service-plugin version conflict

Error:

Error:org.gradle.api.GradleException: Please fix the version conflict either by updating the version of the google-services plugin (information about the latest version is available at https://bintray.com/android/android-tools/com.google.gms.google-services/ ) or updating the version of com.google.android.gms to 10.0.1.

Root level build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        jcenter()
    }
    dependencies {

        classpath 'com.android.tools.build:gradle:2.3.1'
        classpath 'com.google.gms:google-services:3.0.0'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}
allprojects {
    repositories {
        jcenter()
    }
}
task clean(type: Delete) {
    delete rootProject.buildDir
}


dependencies {
}

app level build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.2"
    defaultConfig {
        applicationId "com.sha.agecalculator"
        minSdkVersion 9
        targetSdkVersion 25
        versionCode 11
        versionName "2.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })

    compile 'com.google.gms:google-services:3.0.0'
    compile 'com.google.firebase:firebase-ads:10.0.1'
    compile 'com.google.android.gms:play-services-ads:10.2.1'
    compile 'com.google.android.gms:play-services-analytics:10.2.1'

    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.android.support:design:25.3.1'
    compile 'com.android.support:support-v4:25.3.1'


    compile 'joda-time:joda-time:2.3'
    testCompile 'junit:junit:4.12'
}


apply plugin: 'com.google.gms.google-services'

Answer 1

Wrong

 compile 'com.google.gms:google-services:3.0.0' //remove this line from dependencies 

Do

compile 'com.google.android.gms:play-services:10.2.1' 
compile 'com.google.firebase:firebase-ads:10.2.1'
compile 'com.android.support:appcompat-v7:25.2.0'
compile 'com.android.support:design:25.2.0'
compile 'com.android.support:support-v4:25.2.0'