(KotlinSourceSet with name 'iosMain' not found.) How can I add android as a build target to a Kotlin Multiplatform project

There is such a topic on the website stackoverflow.com: KotlinSourceSet with name 'androidMain' not found..

I have a similar problem: "KotlinSourceSet with name 'iosMain' not found."

I don't quite understand how to resolve it. Help me please. [![Task 1][1]][1] [![Task 2][2]][2]

Update: resolved, now I got: Built iOS application: failed with code 65 ... What should I do to fix it?

The generic ios sourceset has been deprecated and you now have to specify the targets more explicitly. This means that for the adding of targets instead of adding a generic ios(), you specify the separate targets:

kotlin {
    androidTarget {
        compilations.all {
            kotlinOptions {
                jvmTarget = "1.8"
            }
        }
    }

    listOf(
        iosX64(),
        iosArm64(),
        iosSimulatorArm64()
    ).forEach {
        it.binaries.framework {
            baseName = "shared"
        }
    }

    // ios() // -> This has been deprecated
    iosArm64()
    iosX64()
    iosSimulatorArm64()

And when specifying the sourcesets, you add their main/test targets:

sourceSets {
...
val iosArm64Main by getting {
    dependencies {
      ...
    }
}
val iosArm64Test by getting {
    dependencies {
      ...
    }
}
val iosX64Main by getting {
    dependencies {
      ...
    }
}
val iosSimulatorArm64Main by getting {
    dependencies {
      ...
    }
}