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kotlinlang

I've got a question about the Gradle Kotlin DSL. I'm trying to generate a sources jar, so I'm using both this <https://stackoverflow.com/questions/11474729/how-to-build-sources-jar-with-gradle> and this <https://github.com/gradle/kotlin-dsl/blob/master/samples/maven-publish/build.gradle.kts>. However, in my build script, the tasks.registering function is not recognized, so I have switched it to creating for now. In addition, the sourceSets variable is not being recognized either and causes this error

```
Unresolved reference. None of the following candidates is applicable because of receiver type mismatch:
                        public val KotlinJvmProjectExtension.sourceSets: NamedDomainObjectContainer&lt;DefaultKotlinSourceSet&gt; defined in org.gradle.kotlin.dsl
```