Getting… rid of those missing android* source sets warnings on your KMP project

Getting… rid of those missing android* source sets warnings on your KMP project cover

While cleaning up the warnings in one of my projects, I’ve noticed that there was one that kept showing up:

The following Kotlin source sets were configured but not added to any Kotlin compilation:
 * androidAndroidTestRelease
 * androidTestFixtures
 * androidTestFixturesDebug
 * androidTestFixturesRelease
You can add a source set to a target’s compilation by connecting it with the compilation’s default source set using ‘dependsOn’.
See https://kotlinlang.org/docs/reference/building-mpp-with-gradle.html#connecting-source-sets

Although this issue is already reported at KT-48436, you can temporarily a workaround to resolve it. Open the build.gradle.kts file at the root of your shared project and look for the allprojects section, and add:

afterEvaluate {
    project.extensions.findByType<org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension>()?.let { ext ->
        ext.sourceSets.removeAll { sourceSet ->
            setOf(
                "androidAndroidTestRelease",
                "androidTestFixtures",
                "androidTestFixturesDebug",
                "androidTestFixturesRelease",
            ).contains(sourceSet.name)
        }
    }
}

If you don’t have this section, don’t forget to add it before:

allprojects {
  
  afterEvaluate {    
    project.extensions...
}

That’s it! Compile your project: one less warning! 🙌

Do you have a better approach? Something didn’t quite work with you?

You are welcome to reply here or send me a message 🙂

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