Android Error:Execution failed for task ':app:transformClassesWithJarMergingForDebug

Question

I am trying to create a chat app using Firebase, but when I run the code, I get this error:

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

My grade file:

apply plugin: 'com.android.application'

android {
compileSdkVersion 25
buildToolsVersion "24.0.2"
defaultConfig {
    applicationId "com.example.sebastian.chatapp"
    minSdkVersion 16
    targetSdkVersion 25
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    multiDexEnabled true
}
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.android.support:appcompat-v7:25.1.0'
compile 'com.android.support:design:25.1.0'
compile 'com.google.firebase:firebase-core:9.8.0'
compile 'com.google.firebase:firebase-invites:9.8.0'
compile 'com.firebaseui:firebase-ui:0.6.0'
compile 'com.google.firebase:firebase-auth:10.0.0'
compile 'com.android.support:support-v4:25.1.0'
testCompile 'junit:junit:4.12'


}



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

How can i resolve this issue?

you are using two version of same library firebase-core:9.8.0 and firebase-core:10.0.1. This may be the issue. try removing one of them. — Lakhan Sharma, Jan 10 '17 at 05:27
also there are two versions for libraries support:design and support:appcompat-v7 try removng them also. — Lakhan Sharma, Jan 10 '17 at 05:32
All android support needs to be same version. All firebase needs to be same version. Firebase UI has different version than the others — OneCricketeer, Jan 10 '17 at 05:35
please clean project using terminal by command ./gradlew clean — Muhammad Younas, Jan 10 '17 at 05:53

score 0 · Answer 1 · answered Jan 10 '17 at 05:18

0

I had the same issue!, this a non-sense type problem & solution. move your

apply plugin: 'com.google.gms.google-services' to the top of the file.

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

......

answered Jan 10 '17 at 05:18

Sadiq Md Asif

882
6
18

Sagar Gangawane · Answer 2 · 2017-01-10T05:46:35.897

0

Hey code contains duplicate dependency.

compile'com.android.support:appcompat-v7:25.1.0'
compile'com.google.firebase:firebase-core:10.0.1'
compile'com.android.support:design:23.4.0'
compile'com.google.firebase:firebase-core:9.8.0'
compile'com.google.firebase:firebase-invites:9.8.0'
compile'com.firebaseui:firebase-ui:0.6.0'
compile'com.google.firebase:firebase-auth:10.0.0'
compile'com.android.support:appcompat-v7:25.1.0'  //remove this
compile'com.android.support:design:25.1.0'   //remove this 
compile'com.android.support:support-v4:23.0.1' //remove this
testCompile'junit:junit:4.12'

Hope this help.Happy coding.

edited Jan 10 '17 at 05:46

answered Jan 10 '17 at 05:25

Sagar Gangawane

1,985
1
12
22

No... still same issuue – Jan 10 '17 at 05:34
Sync the project and rebuild it and check. – Sagar Gangawane Jan 10 '17 at 05:42
update the answer please check .You don't have add the v4 dependency if you already have v7. Refer this link http://stackoverflow.com/questions/18084808/if-i-use-new-v7-appcompat-library-do-i-still-need-v4-support-library-fo – Sagar Gangawane Jan 10 '17 at 05:47
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/132750/discussion-between-sagar-gangawane-and-tom). – Sagar Gangawane Jan 10 '17 at 05:48

Bob Snyder · Answer 3 · 2017-01-10T06:27:02.313

0

Firebase UI has transitive dependencies on the Firebase SDK libraries. The compatible versions are listed in a table in the Firebase UI documentation. To use the latest (10.0.1) version of the Firebase SDK, you must use version 1.0.1 of the Firebase UI library. You should also use consistent versions of the Firebase SDK libraries and Support libraries. Update your dependencies like this:

compile 'com.android.support:appcompat-v7:25.1.0'
compile 'com.android.support:design:25.1.0'
compile 'com.android.support:support-v4:25.1.0'
compile 'com.google.firebase:firebase-core:10.0.1'
compile 'com.google.firebase:firebase-invites:10.0.1'
compile 'com.google.firebase:firebase-auth:10.0.1'
compile 'com.firebaseui:firebase-ui:1.0.1'
testCompile 'junit:junit:4.12'

Also, to use firebase-ui:1.0.1 the following change must be made to your project (top-level) build.gradle file:

allprojects {
    repositories {
        jcenter()
        mavenLocal()
        mavenCentral()
        maven { url 'https://maven.fabric.io/public' }
    }
}

edited Jan 10 '17 at 06:27

answered Jan 10 '17 at 06:00

Bob Snyder

37,759
6
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Error:Failed to resolve: com.twitter.sdk.android:twitter:2.2.0 – Jan 10 '17 at 06:09
Did you make the change to the repository list in the project build.gradle? – Bob Snyder Jan 10 '17 at 06:11
I updated my answer to add `mavenCentral()` to the repository list. See if that fixes it. – Bob Snyder Jan 10 '17 at 06:27
The addition of `maven { url 'https://maven.fabric.io/public' }` should fix the _Failed to resolve..._ error. [See here](https://github.com/firebase/FirebaseUI-Android/issues/392). Post your project build.gradle. – Bob Snyder Jan 10 '17 at 15:36

Android Error:Execution failed for task ':app:transformClassesWithJarMergingForDebug

3 Answers3