When I got up this morning, I was perplexed to see that our CI/CD builds were failing repeatedly with the following error:
Execution failed for task ':app:checkStagingReleaseDuplicateClasses'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable
> Duplicate class kotlin.collections.jdk8.CollectionsJDK8Kt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10)
Duplicate class kotlin.internal.jdk7.JDK7PlatformImplementations found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.6.10)
Duplicate class kotlin.internal.jdk8.JDK8PlatformImplementations found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10)
Duplicate class kotlin.io.path.ExperimentalPathApi found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.6.10)
Duplicate class kotlin.io.path.PathRelativizer found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.6.10)
Duplicate class kotlin.io.path.PathsKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.6.10)
Duplicate class kotlin.io.path.PathsKt__PathReadWriteKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.6.10)
Duplicate class kotlin.io.path.PathsKt__PathUtilsKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.6.10)
Duplicate class kotlin.jdk7.AutoCloseableKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk7-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.6.10)
Duplicate class kotlin.jvm.jdk8.JvmRepeatableKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10)
Duplicate class kotlin.random.jdk8.PlatformThreadLocalRandom found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10)
Duplicate class kotlin.streams.jdk8.StreamsKt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10)
Duplicate class kotlin.streams.jdk8.StreamsKt$asSequence$$inlined$Sequence$1 found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10)
Duplicate class kotlin.streams.jdk8.StreamsKt$asSequence$$inlined$Sequence$2 found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10)
Duplicate class kotlin.streams.jdk8.StreamsKt$asSequence$$inlined$Sequence$3 found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10)
Duplicate class kotlin.streams.jdk8.StreamsKt$asSequence$$inlined$Sequence$4 found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10)
Duplicate class kotlin.text.jdk8.RegexExtensionsJDK8Kt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10)
Duplicate class kotlin.time.jdk8.DurationConversionsJDK8Kt found in modules jetified-kotlin-stdlib-1.8.0 (org.jetbrains.kotlin:kotlin-stdlib:1.8.0) and jetified-kotlin-stdlib-jdk8-1.6.10 (org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.6.10)
I looked for any problems relating to this but came up empty-handed. After making a few attempts, I discovered a workaround:
Your android/app/build.gradle
file has to be updated in order to align kotlin-stdlib
versions:
configurations.all {
resolutionStrategy {
eachDependency {
if ((requested.group == "org.jetbrains.kotlin") && (requested.name.startsWith("kotlin-stdlib"))) {
useVersion("1.6.10")
}
}
}
}
UPDATE (27-01-2023):
In the android/app/build.gradle
file, there is a better way to apply constraints for the two kotlin-stdlib-jdk7
and kotlin-stdlib-jdk8
modules:
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")
}
}
Oldest comments (22)
I'm happy to hear that
Just logged in to say thank you.
You're the best.
Thank you for the post. I meet the same errors and your first solution helped to fix them. I try to find a better sollution. I upgraded Kotlin to the latest version and it works fine.
Please give additional information about how you updated Kotlin in your project or on CI?
Thanks!
Thank you so much! Wasted like 3 hours on that!
Thank you so much my friend! 100+ build failed yesterday can you explain us how did you find this?
Created an account just to thank you
Thank you so much!!! I lost a lot of time with this problem. God bless you! 🚀🚀🚀
great! this worked for me also
Thanks you so much!
How can I update this in expo project because android/app/build.gradle is not available in my project directory??.
you can create own config plugin docs.expo.dev/guides/config-plugins/ that inject this value
Thank you so much.
Thank you so much! It helped me 💪
Thank you so much!
Issue resolved. Thank you.
I am a react-native developer and there is no kotlin code in my project, I do not do any bridging.
Still Do i need to maintain any plugins or constrains related to Kotlin?