CODEWITHSUNDEEP
androidfirebase
Sanj Ediris
Sanj Ediris

Reputation: 103

Duplicate class com.google.android.gms.internal.firebase_messaging.zza found in modules

Just started this error on Android build. Please help. "Duplicate class com.google.android.gms.internal.firebase_messaging.zza found in modules jetified-firebase-iid-19.0.0-runtime.jar (com.google.firebase:firebase-iid:19.0.0) and jetified-firebase-messaging-22.0.0-runtime.jar (com.google.firebase:firebase-messaging:22.0.0)"

Upvotes: 10

Views: 11826

Answers (7)

chrisonline
chrisonline

Reputation: 7109

BOM 31.x does have currently this problem.

See issue here:
https://github.com/firebase/firebase-android-sdk/issues/4206

Resolved via issue here but not yet official released:
https://github.com/firebase/firebase-android-sdk/pull/4225

Comment:
it was not resolved yet, 31.0.1 only contained a fix to crashlytics crash bug. That's why this issue is still open. The team here will make a fix close the issue, then do a release likely with release notes indicating it is fixed, when it is fixed https://firebase.google.com/support/release-notes/android - here

A current workaround is to add the iid version explicitly until a new BOM version is released:

implementation platform('com.google.firebase:firebase-bom:31.0.0')

implementation 'com.google.firebase:firebase-functions'
implementation 'com.google.firebase:firebase-messaging'
implementation 'com.google.firebase:firebase-iid:21.1.0'

Upvotes: 4

Sébastien Chandonay
Sébastien Chandonay

Reputation: 69

Using react-native-push-notification ^3.1.9, I've got the same error.

To fix it :

in project/build.gradle:

buildscript {
    ext {
        googlePlayServicesVersion = "17.0.0"
        firebaseMessagingVersion = "20.1.0"
        firebaseVersion = "20.1.0"

        // other settings
    }
 // other settings
}

in project/app/build.gradle:

dependencies {
    implementation "com.google.firebase:firebase-messaging:20.1.0"
    // other implementations
}

The reason : react-native-push-notification package specify dependency to firebase-messaging:+ : which ask to get the last version. So, gradle upload the latest com.google.firebase:firebase-messaging:22.x.x which declare already existing classes in firebase-iid.

Upvotes: 2

Pztar
Pztar

Reputation: 4759

If you don't want to use firebase-bom because you don't trust firebase to keep all the proper versions in check then you can remove the duplicate.

  1. Run ./gradlew app:dependencies (or replace app with your module)
  2. Search for iid:19.0.0 (or whatever version is giving you issues)
  3. Scroll up in the list to see where the library originates from.

You should see something like \--- com.google.firebase:firebase-iid:19.0.0

  1. Keep scrolling until you find the dependency and module it originates in, marked with a + eg (+--- com.google.firebase:firebase-ml-vision)
  2. Locate the dependency in your project and remove the duplicate iid
api("com.google.firebase:firebase-ml-vision:$version") {
    exclude group: 'com.google.firebase', module: 'firebase-iid'
}

Upvotes: 1

Ramananda Sarkar
Ramananda Sarkar

Reputation: 259

In build.gradle:

implementation "com.google.firebase:firebase-iid:21.1.0"

Upvotes: 16

Den Zajac
Den Zajac

Reputation: 81

None of the answers above is correct. And none of them solves the problem. The problem is in transitive dependencies. You need to check which libs are causing the issue and do something like:

implementation 'com.google.firebase:firebase-messaging:22.0.0'
implementation ('com.google.firebase:firebase-iid:21.1.0') {
    transitive = true
}

Upvotes: 6

Fabrizio Billeci
Fabrizio Billeci

Reputation: 582

I resolved this problem by using the Firebase Android BoM

In my case the problem depends on the coexistence of messaging and functions.

So from this:

implementation 'com.google.firebase:firebase-messaging:22.0.0'
implementation 'com.google.firebase:firebase-functions-ktx:20.0.0'

To this:

implementation platform('com.google.firebase:firebase-bom:28.2.1')
implementation 'com.google.firebase:firebase-functions-ktx'
implementation 'com.google.firebase:firebase-messaging'

Upvotes: 5

nath7
nath7

Reputation: 29

I encountered the same problem.

I fixed it by redefining my dependencies implementations like this:

In build.gradle:

implementation 'com.google.firebase:firebase-analytics:19.0.0'
implementation 'com.google.firebase:firebase-auth:17.0.0'
implementation 'com.google.firebase:firebase-messaging:22.0.0'

Please note my configuration in buildscript: com.android.tools.build:gradle:4.2.1

Then, clean and rebuild project.

Can you share more information about your setup?

Upvotes: 2

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