Gradle Kotlin Native - You have not specified any compilation arguments. No output has been produced - gradle

Question

I'm pretty new to Gradle and Kotlin Native. I want to setup my build.gradle so that I can use Native to compile my code. I'm using the Konan plugin to do this. It worked fine when I hard-coded my class in the konanArtifacts.program.srcFiles. But obviously if I add more classes, I'll have to add the paths to srcFiles and I don't (and shouldn't) need to. So I looked around to find a way to add any classes I add automatically, and I attempted sourceSets. But when I try to run the compileKonanClientMingw task now my gradle console gives me the following:
error: you have not specified any compilation arguments. No output has been produced.
I'm not entirely sure that I'm using sourceSets correctly, but this seems to be the farthest I got. Below is my build.gradle
build.gradle:
buildscript {
ext.kotlin_version = '1.2.41'
ext.konan_version = '0.6'
repositories {
mavenCentral()
maven {
url "https://dl.bintray.com/jetbrains/kotlin-native-dependencies"
}
}
dependencies {
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
classpath "org.jetbrains.kotlin:kotlin-native-gradle-plugin:$konan_version"
}
}
plugins {
id 'java'
}
group 'net.dev909'
version '1.0'
apply plugin: 'kotlin'
apply plugin: 'konan'
sourceCompatibility = 1.8
repositories {
mavenCentral()
}
dependencies {
compile "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
testCompile group: 'junit', name: 'junit', version: '4.12'
}
sourceSets.main.allSource.srcDir '/src/main/kotlin/'
compileKotlin {
kotlinOptions.jvmTarget = "1.8"
}
compileTestKotlin {
kotlinOptions.jvmTarget = "1.8"
}
konanArtifacts {
program('client-' + version) {
srcFiles sourceSets.main.runtimeClasspath
}
}

Answer 1

Source sets are a part of the Java world and the Java plugin, so the Kotlin/Native plugin avoids using them to be independent on Java. But you still able to compile a bunch of classes, just specify the srcDir parameter:
konanArtifacts {
program('client-' + version) {
srcDir 'src/main/kotlin/'
}
}
Also note that src/main/kotlin/ is a default source path. So if you use only this path, you don't need to specify it explicitly. You may just write:
konanArtifacts {
program('client-' + version)
}