CODEWITHSUNDEEP
build.gradle
marites Lumboy
marites Lumboy

Reputation: 41

How to fix this error duplicate class found in module class.jar

I got this error when I try to generate signed apk for my project

Duplicate class com.google.android.gms.measurement.AppMeasurement found in modules classes.jar (com.google.android.gms:play-services-measurement-impl:16.5.0) and classes.jar (com.google.firebase:firebase-analytics-impl:10.0.1) Duplicate class com.google.firebase.analytics.FirebaseAnalytics found in modules classes.jar (com.google.android.gms:play-services-measurement-api:16.5.0) and classes.jar (com.google.firebase:firebase-analytics-impl:10.0.1) Duplicate class com.google.firebase.analytics.FirebaseAnalytics$Event found in modules classes.jar (com.google.android.gms:play-services-measurement-api:16.5.0) and classes.jar (com.google.firebase:firebase-analytics-impl:10.0.1) Duplicate class com.google.firebase.analytics.FirebaseAnalytics$Param found in modules classes.jar (com.google.android.gms:play-services-measurement-api:16.5.0) and classes.jar (com.google.firebase:firebase-analytics-impl:10.0.1) Duplicate class com.google.firebase.analytics.FirebaseAnalytics$UserProperty found in modules classes.jar (com.google.android.gms:play-services-measurement-api:16.5.0) and classes.jar (com.google.firebase:firebase-analytics-impl:10.0.1)

Go to the documentation to learn how to Fix dependency resolution errors.

how do I fix It?

Upvotes: 4

Views: 10223

Answers (3)

LightUP Creativity
LightUP Creativity

Reputation: 11

Reason: This error usually occurs due to depedencies using same functionality.

Solution: To revolve such issue is to comment: play-services because play-services-maps has same functions like play-services and also display locations on our android UI system. Please see below for solution.

//implementation 'com.google.android.gms:play-services:12.0.1'

implementation 'com.google.android.gms:play-services-maps:17.0.0'

Also checkout notable transitive dependencies: https://github.com/firebase/FirebaseUI-Android/releases

I hope its help solve so many developers project issues.

Upvotes: 1

Fazal Hussain
Fazal Hussain

Reputation: 1127

For those who face this type of issue in the future

Ensure that you are using the specific dependency of play services according to your requirements. In my case, I need a map dependency but I am importing the play service dependency which causes duplicate class issues with another firebase dependency.

Use this

def playServiceVersion = "17.0.0"
implementation "com.google.android.gms:play-services-maps:$playServiceVersion"

Instead of

def playServiceVersion = "17.0.0"
implementation "com.google.android.gms:play-services:$playServiceVersion"

For further information check the link below

https://developers.google.com/android/guides/setup

Upvotes: 2

joash
joash

Reputation: 2321

Try with 

implementation("com.google.android.gms:play-services-gcm:$project.playServicesVersion") {
    exclude group: 'com.google.android.gms'
}

You can Try including one by one the one which brings errors you apply 

 implementation("**API**") {
    exclude group: 'com.google.android.gms'
}

NB $project.playServicesVersion could be any of your versions you are using

Upvotes: 8

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