Gradle fail: Duplicate class com.google.firebase.ktx.Firebase

Question

After upgrading from 2021.3.16f1 LTS to 2022.3.10f1 LTS we get the following error when building our APK:

stderr[
Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF-8

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':launcher:checkReleaseDuplicateClasses'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable
   > Duplicate class com.google.firebase.ktx.Firebase found in modules jetified-com.google.firebase.firebase-common-20.4.0-runtime (:com.google.firebase.firebase-common-20.4.0:) and jetified-com.google.firebase.firebase-common-ktx-20.3.3-runtime (:com.google.firebase.firebase-common-ktx-20.3.3:)
     Duplicate class com.google.firebase.ktx.FirebaseCommonKtxRegistrar found in modules jetified-com.google.firebase.firebase-common-20.4.0-runtime (:com.google.firebase.firebase-common-20.4.0:) and jetified-com.google.firebase.firebase-common-ktx-20.3.3-runtime (:com.google.firebase.firebase-common-ktx-20.3.3:)
     Duplicate class com.google.firebase.ktx.FirebaseCommonKtxRegistrar$getComponents$$inlined$coroutineDispatcher$1 found in modules jetified-com.google.firebase.firebase-common-20.4.0-runtime (:com.google.firebase.firebase-common-20.4.0:) and jetified-com.google.firebase.firebase-common-ktx-20.3.3-runtime (:com.google.firebase.firebase-common-ktx-20.3.3:)
     Duplicate class com.google.firebase.ktx.FirebaseCommonKtxRegistrar$getComponents$$inlined$coroutineDispatcher$2 found in modules jetified-com.google.firebase.firebase-common-20.4.0-runtime (:com.google.firebase.firebase-common-20.4.0:) and jetified-com.google.firebase.firebase-common-ktx-20.3.3-runtime (:com.google.firebase.firebase-common-ktx-20.3.3:)
     Duplicate class com.google.firebase.ktx.FirebaseCommonKtxRegistrar$getComponents$$inlined$coroutineDispatcher$3 found in modules jetified-com.google.firebase.firebase-common-20.4.0-runtime (:com.google.firebase.firebase-common-20.4.0:) and jetified-com.google.firebase.firebase-common-ktx-20.3.3-runtime (:com.google.firebase.firebase-common-ktx-20.3.3:)
     Duplicate class com.google.firebase.ktx.FirebaseCommonKtxRegistrar$getComponents$$inlined$coroutineDispatcher$4 found in modules jetified-com.google.firebase.firebase-common-20.4.0-runtime (:com.google.firebase.firebase-common-20.4.0:) and jetified-com.google.firebase.firebase-common-ktx-20.3.3-runtime (:com.google.firebase.firebase-common-ktx-20.3.3:)
     Duplicate class com.google.firebase.ktx.FirebaseKt found in modules jetified-com.google.firebase.firebase-common-20.4.0-runtime (:com.google.firebase.firebase-common-20.4.0:) and jetified-com.google.firebase.firebase-common-ktx-20.3.3-runtime (:com.google.firebase.firebase-common-ktx-20.3.3:)
     Duplicate class com.google.firebase.ktx.FirebaseKt$coroutineDispatcher$1 found in modules jetified-com.google.firebase.firebase-common-20.4.0-runtime (:com.google.firebase.firebase-common-20.4.0:) and jetified-com.google.firebase.firebase-common-ktx-20.3.3-runtime (:com.google.firebase.firebase-common-ktx-20.3.3:)

We have tried deleting and upgrading firebase after deleting the Unity Library folder.

Metamorphism

I ran into the same issue. Apparently this probably doesn't have to do with the change to the newer Unity version but that there is a new firebase package (20.4.0) which was released on September 28: https://mvnrepository.com/artifact/com.google.firebase/firebase-common/20.4.0 So you probably have some references to 20.3.3 in some packages as well which is the cause for those dependency conflicts.

– Gand

Same error here

– Sodality

I'm having the same error, no solution yet

– Niphablepsia

Any idea how to figure out what the 20.3.3 files are? Do we just have to delete all of our plugins and reinstall everything?

– Metamorphism

I'm working on it. Also having some talented guys in background who look into that as well. When I find a solution I'm going to post it here. But it might differ from project to project ofc.

– Gand