java.util.zip.ZipException: duplicate entry with firebase
Solution 1
Try to update buildToolsVersion to 25.0.2
I face same issue today, and I try to use
compile 'com.google.firebase:firebase-core:10.2.1'
compile 'com.google.firebase:firebase-messaging:10.2.1'
clean project and rebuild project
everything is all right
check support library is version 25.3.0 on each module, and make sure all the firebase module is 10.2.1
Solution 2
For me it was dependency issue with version number using with google play services library and firebase library. Use following command to see dependency tree:
gradlew :app:dependencies
Output:
check your library version. here version in left side of -> is requested version and version at right side of -> is picked version by gradle.
So I updated my google play services library version and firebase library version to 11.0.1 in app level build.gradle file.
compile "com.google.android.gms:play-services-location:11.0.1"
compile "com.google.android.gms:play-services-base:11.0.1"
compile "com.google.android.gms:play-services-maps:11.0.1"
compile 'com.google.firebase:firebase-crash:11.0.1'
compile 'com.google.firebase:firebase-core:11.0.1'
you can see google play services library versions here
Mahendra Chhimwal
I am a B.Tech graduate in Electronics and communication .Likes playing , talking coding programs and learning new technologies of almost all kinds. Currently I am working as a C++ developer. Besides software programmer , I am an active Blogger . I have couple of technical blogs including http://www.Softphonetech.com/
Updated on June 19, 2022Comments
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Mahendra Chhimwal almost 2 years
I am building an application with firebase but getting the Duplicate class error. I have checked all dependencies, but I'm not able to figure out where did I have two version of firebase libs. Error: Execution failed for task ':app:transformClassesWithJarMergingForDebug'.
com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: com/google/firebase/iid/zzb$1.class
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' apply plugin: 'com.google.gms.google-services' android { compileSdkVersion 25 buildToolsVersion '24.0.3' defaultConfig { applicationId "com.android.palmtickle" minSdkVersion 14 targetSdkVersion 25 versionCode 1 versionName "1.0" //Enabling multiDex support. multiDexEnabled true } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } repositories { mavenCentral() maven { url 'http://dl.bintray.com/amulyakhare/maven' } maven { url 'https://maven.fabric.io/public' } } dependencies { compile('com.digits.sdk.android:digits:2.0.6@aar') { transitive = true; } //support and app compatibility libs compile 'com.android.support:appcompat-v7:25.3.0' compile 'com.android.support:design:25.3.0' compile 'com.android.support:cardview-v7:25.3.0' compile 'com.android.support:recyclerview-v7:25.3.0' compile 'com.android.support:support-v4:25.3.0' compile 'com.google.code.gson:gson:2.7' compile 'com.squareup.retrofit:retrofit:1.9.0' compile 'com.squareup.picasso:picasso:2.5.2' compile 'de.hdodenhof:circleimageview:2.0.0' compile 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1' compile 'com.wdullaer:materialdatetimepicker:2.1.1' //entries related to firebase compile 'com.google.firebase:firebase-auth:10.2.1' compile 'com.google.firebase:firebase-database:10.2.1' compile 'com.google.guava:guava-base:r03' compile 'com.yalantis:ucrop:2.2.0-native' }
As I always try to solve errors like this by searching duplicate files in Android Studio. When I search class zzb in android studio, I am getting a jar firebase-iid-9.0.0 with all other 10.2.1 firebase classes. I am not able to find out which dependency is injecting this firebase-iid-9.0.0 jar? Any idea?