Kotlinx.serialization: Plugin with id 'kotlinx-serialization' not found.

[wessimtrimeche]

Applying the 'kotlinx-serialization' plugin in the application gradle file will result in an error stating that this plugin is unfound.
Are there some additional plugins I need to add in my gradle file in order for the serialization plugin to be found ?

[sandwwraith]

Have you added maven { url "https://kotlin.bintray.com/kotlinx" } in buildscript repositories?

[wessimtrimeche]

yes I did

[sandwwraith]

Rather strange. Take a look at example project configuration, it should 100% work: https://github.com/Kotlin/kotlinx.serialization/blob/master/example-jvm/build.gradle.

Probably you use new gradle plugin block instead of apply plugin ..., which doesn't work for now, because plugin is not uploaded to Gradle Plugin Portal

[wessimtrimeche]

maybe the latest kotlin plugin named 'kotlin-android' includes the serialization one, thank you anyway

[sandwwraith]

No, I don't think so. Serialization plugin was not bundled anywhere

[LouizFC]

@wessimtrimeche are you using Kotlin DSL? I had the same problem.

I fixed it by adding the following to the settings.gradle.kts:

pluginManagement({
    repositories {
        gradlePluginPortal()
        maven("https://kotlin.bintray.com/kotlinx")
    }
    resolutionStrategy {
        eachPlugin {
            when (requested.id.id) {
                "kotlinx-serialization"->{
                    useModule("org.jetbrains.kotlinx:kotlinx-gradle-serialization-plugin:${requested.version}")
                }
            }
        }
    }
})

and the following in the build.gradle.kts

plugins {
    id("kotlinx-serialization") version "0.4.1" apply true
}

I am not familiar with "groovy" gradle, but since they are similar maybe this can help you.

Edit: Also, I am using Gradle 4.5.1 , this is very important, the older versions (4.3 and below I think) does not have the Kotlin DSL plugin in them, but you can add it manually I think

[pdvrieze]

As a note, the same code (except for when - use an if) works for groovy based build scripts.

[Ricindigus]

in your build.graddle (Project)

in dependencies, add this line
dependencies {
classpath "org.jetbrains.kotlin:kotlin-serialization:$kotlin_version"
}