Execution error failed for task ': app: transformClassesWithJarMergingForDebug'

I get this error when collecting the project:

Execution failed for task ':app:transformClassesWithJarMergingForDebug. com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: com/google/android/gms/internal/zzas.class

How to fix it? I understand that the problem is in build.gradle, in the gms library. But I can not understand exactly which line gives this conflict:

 apply plugin: 'com.android.application' buildscript { repositories { mavenCentral() } android { compileSdkVersion 25 buildToolsVersion '25.0.0' defaultConfig { minSdkVersion 16 targetSdkVersion 22 versionCode 1 versionName "1.0" ndk { abiFilters "armeabi-v7a", "x86" } multiDexEnabled true } } dependencies { compile fileTree(include: ['*.jar'], dir: 'libs') compile 'com.android.support:appcompat-v7:25.0.0' compile 'com.facebook.react:react-native:+' compile project(':react-native-twitter-signin') compile project(':react-native-linkedin-login') compile project(':react-native-google-signin') compile project(':react-native-fbsdk') compile project(':react-native-spinkit') compile project(':react-native-linear-gradient') compile('com.twitter.sdk.android:twitter:2.1.1@aar') { transitive = true; } compile 'com.android.support:design:25.0.0' compile 'com.instabug.library:instabug:3+' compile(project(':react-native-google-signin')) { exclude group: "com.google.android.gms" // very important } compile 'org.piwik.sdk:piwik-sdk:1.0.2' compile 'com.google.android.gms:play-services:9.8.0' compile 'com.newrelic.agent.android:android-agent:5.12.3' compile 'com.android.support:multidex:1.0.0' }