CODEWITHSUNDEEP
android-studioclass
VFarkas2023
VFarkas2023

Reputation: 575

Android Studio says: duplicate class found

Android Studio throws "duplicate class found" at me, but I did not do anything:

Duplicate class kotlin.collections.jdk8.CollectionsJDK8Kt found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk8-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.21)
Duplicate class kotlin.internal.jdk7.JDK7PlatformImplementations found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.internal.jdk7.JDK7PlatformImplementations$ReflectSdkVersion found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.internal.jdk8.JDK8PlatformImplementations found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk8-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.21)
Duplicate class kotlin.internal.jdk8.JDK8PlatformImplementations$ReflectSdkVersion found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk8-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.21)
Duplicate class kotlin.io.path.DirectoryEntriesReader found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.ExperimentalPathApi found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.FileVisitorBuilder found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.FileVisitorBuilderImpl found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.FileVisitorImpl found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.LinkFollowing found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.PathNode found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.PathRelativizer found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.PathTreeWalk found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.PathTreeWalk$bfsIterator$1 found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.PathTreeWalk$dfsIterator$1 found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.PathTreeWalkKt found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.PathWalkOption found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.PathsKt found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.PathsKt__PathReadWriteKt found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.io.path.PathsKt__PathUtilsKt found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.jdk7.AutoCloseableKt found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk7-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.7.21)
Duplicate class kotlin.jvm.jdk8.JvmRepeatableKt found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk8-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.21)
Duplicate class kotlin.jvm.optionals.OptionalsKt found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk8-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.21)
Duplicate class kotlin.random.jdk8.PlatformThreadLocalRandom found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk8-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.21)
Duplicate class kotlin.streams.jdk8.StreamsKt found in modules kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and kotlin-stdlib-jdk8-1.7.21 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.21)

and so on ...

Upvotes: 37

Views: 32675

Answers (10)

Ángel Ruiz Cantón
Ángel Ruiz Cantón

Reputation: 16

In my case I had the same problem but with of duplicated classes, but betwen the version 1.9.0 and 1.7.10: Duplicate class kotlin.collections.jdk8.CollectionsJDK8Kt found in modules jetified-kotlin-stdlib-1.9.0 (org.jetbrains.kotlin:kotlin-stdlib:1.9.0) and jetified-kotlin-stdlib-jdk8-1.7.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10) . . .

My project is a Flutter project.

I got the solution modifying the file gradle.properties from the Android directory:

From:

plugins {

    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
    id "com.android.application" version '8.3.0' apply false
    id "org.jetbrains.kotlin.android" version "1.7.10" apply false

}

To:

plugins {

    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
    id "com.android.application" version '8.3.0' apply false
    id "org.jetbrains.kotlin.android" version "1.9.0" apply false
}

Upvotes: 0

Ravi Bhushan Kumar
Ravi Bhushan Kumar

Reputation: 49

Add this in build.gradle:

implementation(platform("org.jetbrains.kotlin:kotlin-bom:1.8.0"))

Sync then remove the above implementation build.gradle and Sync again.

Upvotes: 0

Mori
Mori

Reputation: 4631

Did you try this way ? :

implementation(platform("org.jetbrains.kotlin:kotlin-bom:1.8.0"))

Upvotes: 6

kiumars gilanizadeh
kiumars gilanizadeh

Reputation: 1182

It worked for me, I'm sure it will work for you too

open you project gradle.properties

add this code android.enableJetifier=true below android.useAndroidX=true

then open build.gradle

And add this dependency

dependencies {
         // your project dependency
    constraints{
          implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.8.0'
          implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.8.0'  
        }
}

sync and it will work

Upvotes: 10

MDEV
MDEV

Reputation: 938

This is possible same as this question: Duplicate class kotlin.internal.jdk7.JDK7PlatformImplementations found in modules jetified-kotlin-stdlib-1.8.0

I faced this problem due to these 2 plugins

implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.6.1'
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.1'

Just downgrading from 2.6.1 to 2.5.1

Like below

implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.5.1'
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.5.1'

If the above solution does not affect anything, try downgrading some plugins you just upgraded. It'll definitely resolve.

I hope it is helpful.

Upvotes: 13

Alexander Farber
Alexander Farber

Reputation: 22988

The following advice in JetBrains issue KT 54136 has helped me - append the following to the dependencies section in your app build.gradle file:

dependencies {
    // ....

    constraints {
        implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.8.0") {
            because("kotlin-stdlib-jdk7 is now a part of kotlin-stdlib")
        }
        implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.8.0") {
            because("kotlin-stdlib-jdk8 is now a part of kotlin-stdlib")
        }
    }
}

Upvotes: 10

Dhvani023
Dhvani023

Reputation: 1207

just add

implementation(platform("org.jetbrains.kotlin:kotlin-bom:1.8.0"))

in dependencies

it solved my problem.

Upvotes: 112

GarryMoveOut
GarryMoveOut

Reputation: 377

In my project I have to update project build.gradle

from

classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.10'

to

classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:1.8.0'

Upvotes: 1

Nic
Nic

Reputation: 812

You must upgrade the Android Gradle Plugin to 1.8.0 on the top level build file.

plugins {
    ...
    id 'org.jetbrains.kotlin.android' version '1.8.0' apply false
}

Upvotes: 4

owensizemore
owensizemore

Reputation: 29

I'm no expert, but this same issue happened to me after changing my Kotlin version from 1.7.0 to 1.8.0. Check your app-level build.gradle file to make sure you're using your desired version (in your case, I believe it should be 1.8.0):

dependencies {
   implementation 'androidx.core:core-ktx:1.8.0'
}

Upvotes: 2

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