title: Getting duplicate entry error after adding branch.io to my android project
body: <p>Everything was working fine, but after adding this to my android project error building apk started.Here is the error and dependency</p>
  
  <pre><code>Error:Execution failed for task ':app:transformClassesWithJarMergingForDebug'.
  </code></pre>
  
  <blockquote>
    <p>com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: com/crashlytics/android/answers/shim/R.class</p>
  </blockquote>
  
  <pre><code> compile('io.branch.sdk.android:library:2.6.0@aar') {
      transitive = true;
      exclude module: 'answers-shim'
  }
  </code></pre>
  
  <p>tried excluding it also but error persists.
  Here is my full gradle</p>
  
  <pre><code>buildscript {
  repositories {
      maven { url 'https://maven.fabric.io/public' }
  }
  
  dependencies {
      classpath 'io.fabric.tools:gradle:1.+'
  }
  }
  apply plugin: 'com.android.application'
  apply plugin: 'io.fabric'
  
  repositories {
  maven { url 'https://maven.fabric.io/public' }
  maven { url "https://dl.bintray.com/hani-momanii/maven"}
  }
  
  
  android {
  compileSdkVersion 25
  buildToolsVersion "25.0.2"
  defaultConfig {
      applicationId "com.example.app"
      minSdkVersion 19
      targetSdkVersion 25
      multiDexEnabled true
      versionCode 1
      versionName "1.0"
      resConfigs "en_US", "hi_IN"
      testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
  }
  buildTypes {
      release {
          minifyEnabled false
          proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
      }
  }
  packagingOptions {
      exclude 'META-INF/LICENSE'
      exclude 'META-INF/DEPENDENCIES'
      exclude 'META-INF/LICENSE-FIREBASE.txt'
      exclude 'META-INF/NOTICE'
  }
  
  }
  
  dependencies {
  compile fileTree(dir: 'libs', include: ['*.jar'])
  compile('com.digits.sdk.android:digits:2.0.6@aar') {
      transitive = true;
  
  }
  compile('com.crashlytics.sdk.android:crashlytics:2.6.7@aar') {
      transitive = true;
  }
  compile('io.fabric.sdk.android:fabric:1.3.10@aar') {
      transitive = true;
  }
  compile 'com.android.support:multidex:1.0.1'
  compile 'com.android.support:appcompat-v7:25.3.1'
  compile 'com.android.support:support-v13:25.3.1'
  compile 'com.android.support:design:25.3.1'
  compile 'com.android.support:gridlayout-v7:25.3.1'
  compile 'com.android.support:cardview-v7:25.3.1'
  compile 'com.android.support:recyclerview-v7:25.3.1'
  compile 'com.android.support:support-annotations:25.3.1'
  compile 'de.hdodenhof:circleimageview:1.3.0'
  compile 'com.github.bumptech.glide:glide:3.7.0'
  compile 'com.google.code.gson:gson:2.7'
  compile 'com.google.android.gms:play-services-location:10.2.1'
  compile 'com.google.android.gms:play-services-places:10.2.1'
  compile 'com.amazonaws:aws-android-sdk-core:2.2.+'
  compile 'com.amazonaws:aws-android-sdk-s3:2.2.+'
  compile 'com.amazonaws:aws-android-sdk-ddb:2.2.+'
  compile 'com.amazonaws:aws-android-sdk-lambda:2.2.+'
  compile 'com.google.firebase:firebase-database:10.2.1'
  compile 'com.google.firebase:firebase-core:10.2.1'
  compile 'com.google.firebase:firebase-auth:10.2.1'
  compile 'com.google.firebase:firebase-messaging:10.2.1'
  compile 'com.google.firebase:firebase-crash:10.2.1'
  compile 'com.firebaseui:firebase-ui-database:1.2.0'
  compile 'com.google.firebase:firebase-storage:10.2.1'
  compile 'com.google.firebase:firebase-appindexing:10.2.1'
  compile 'com.github.clans:fab:1.6.4'
  compile 'com.amazonaws:aws-android-sdk-cognito:2.3.9'
  compile 'hani.momanii.supernova_emoji_library:supernova-emoji-library:0.0.2'
  compile 'com.facebook.android:facebook-android-sdk:[4,5)'
  compile('io.branch.sdk.android:library:2.6.0@aar') {
      transitive = true;
      exclude module: 'answers-shim'
  }
  
  }
  apply plugin: 'com.google.gms.google-services'
  </code></pre>
  
  <p>If i add the exclude statement to branch and digits then while entering the app it crashes,if added exclude to crashlytics the error persists.But without adding branch everything works perfect no error during apk build too.</p>