How to fix "Duplicate class com.google.android.gms.common.api.internal.zza" error?

Question

I have updated Android Studio to 3.4 and Admob library from complie 'com.google.android.gms:play-services-ads:12.0.1' to implementation 'com.google.android.gms:play-services-ads:17.2.0'

After that I got duplicate class error when I tried to run app.

Error i got

Duplicate class com.google.android.gms.common.api.internal.zza found in modules classes.jar (com.google.android.gms:play-services-base:12.0.1) and classes.jar (com.google.android.gms:play-services-basement:16.0.1)
Duplicate class com.google.android.gms.common.api.internal.zzb found in modules classes.jar (com.google.android.gms:play-services-base:12.0.1) and classes.jar (com.google.android.gms:play-services-basement:16.0.1)
Duplicate class com.google.android.gms.common.api.internal.zzc found in modules classes.jar (com.google.android.gms:play-services-base:12.0.1) and classes.jar (com.google.android.gms:play-services-basement:16.0.1)
Duplicate class com.google.android.gms.common.api.internal.zzd found in modules classes.jar (com.google.android.gms:play-services-base:12.0.1) and classes.jar (com.google.android.gms:play-services-basement:16.0.1)
Duplicate class com.google.android.gms.common.api.zza found in modules classes.jar (com.google.android.gms:play-services-base:12.0.1) and classes.jar (com.google.android.gms:play-services-basement:16.0.1)
Duplicate class com.google.android.gms.common.api.zzb found in modules classes.jar (com.google.android.gms:play-services-base:12.0.1) and classes.jar (com.google.android.gms:play-services-basement:16.0.1)
Duplicate class com.google.android.gms.common.internal.zzb found in modules classes.jar (com.google.android.gms:play-services-base:12.0.1) and classes.jar (com.google.android.gms:play-services-basement:16.0.1)
Duplicate class com.google.android.gms.common.internal.zzr found in modules classes.jar (com.google.android.gms:play-services-base:12.0.1) and classes.jar (com.google.android.gms:play-services-basement:16.0.1)
Duplicate class com.google.android.gms.common.internal.zzs found in modules classes.jar (com.google.android.gms:play-services-base:12.0.1) and classes.jar (com.google.android.gms:play-services-basement:16.0.1)
Duplicate class com.google.android.gms.common.zze found in modules classes.jar (com.google.android.gms:play-services-base:12.0.1) and classes.jar (com.google.android.gms:play-services-basement:16.0.1)

Go to the documentation to learn how to Fix dependency resolution errors.

Top level gradle

    // Top-level build file where you can add configuration options common to all sub-projects/modules.

    buildscript {
        repositories {
            google()
            jcenter()
            maven { url 'https://maven.fabric.io/public' }
        }
        dependencies {
            classpath 'com.android.tools.build:gradle:3.4.0'
            classpath 'com.google.gms:google-services:4.2.0'
            // NOTE: Do not place your application dependencies here; they belong
            // in the individual module build.gradle files
            classpath 'io.fabric.tools:gradle:1.28.1'
        }
    }

    allprojects {
        repositories {
            google()
            jcenter()
        }
    }

    task clean(type: Delete) {
        delete rootProject.buildDir
    }

    ```

App's gradle

buildscript {
    repositories {
        maven { url 'https://maven.fabric.io/public' }
    }

    dependencies {
        classpath 'io.fabric.tools:gradle:1.27.1'
    }
}
apply plugin: 'com.android.application'
apply plugin: 'io.fabric'

repositories {
    maven { url 'https://maven.fabric.io/public' }
}


android {
    useLibrary 'org.apache.http.legacy'
    compileSdkVersion 27
    buildToolsVersion '28.0.3'
    defaultConfig {
        applicationId "xx.xxx"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 23
        versionName "1.23"
        multiDexEnabled true
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        manifestPlaceholders = [onesignal_app_id: "xxxx-xxx-xxx-xxx",
                                // Project number pulled from dashboard, local value is ignored.
                                onesignal_google_project_number: "REMOTE"]
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    implementation 'com.android.support:recyclerview-v7:27.1.1'
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support:cardview-v7:27.1.1'
    implementation 'com.android.support:design:27.1.1'
    implementation 'com.android.support:customtabs:27.1.1'
   // implementation 'com.google.android.gms:play-services-base:16.1.0'
    //compile 'com.google.android.gms:play-services-gcm:12.0.1'
    implementation 'com.google.android.gms:play-services-ads:17.2.0'
    //compile 'com.google.android.gms:play-services-basement:16.0.1'
    //compile 'com.google.android.gms:play-services-measurement-sdk-api:17.2.0'

    implementation 'de.hdodenhof:circleimageview:3.0.0'
    implementation 'com.github.bumptech.glide:glide:3.7.0'
    implementation 'com.loopj.android:android-async-http:1.4.9'
    implementation 'com.onesignal:OneSignal:3.10.8'

    implementation 'com.android.support:multidex:1.0.3'
    // retrofit, gson
    implementation 'com.squareup.retrofit2:retrofit:2.5.0'

    implementation 'org.droidparts:droidparts:3.2.5'
    implementation 'org.jsoup:jsoup:1.11.3'
    implementation('com.crashlytics.sdk.android:crashlytics:2.9.9@aar') {
        transitive = true;
    }
    testImplementation 'junit:junit:4.12'
}```

Answer 1

Please look up the latest google's play service libraries from this link, and replace the correct version in your gradle file accordingly.

In the app's "build.gradle" file, add the following along with "android {...}"

configurations.all {
    resolutionStrategy {
        force 'com.google.android.gms:play-services-basement:17.1.0'
    }
}

At the time, the lastest google play services basement library version is 17.1.0.

Hope this helps.