build.gradle.kts following githubs guide: Configuring Gradle for use with GitHub Packages. But it fails finding the "from" function - kotlin

Question

I have a sample kotlin project that i am trying to get send to github as a package. Below is the contents of my buid.gradle.kts file. I am following this guide: https://docs.github.com/en/packages/guides/configuring-gradle-for-use-with-github-packages#example-using-kotlin-dsl-for-a-single-package-in-the-same-repository
But i can find any help as to why this error happens with the "from" function"
buid.gradle.kts content:
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
repositories {
mavenCentral()
}
plugins {
kotlin("jvm") version "1.4.31"
`maven-publish`
}
publishing {
repositories {
maven {
name = "GitHubPackages"
url = uri("https://maven.pkg.github.com/OWNER/REPOSITORY")
credentials {
username = project.findProperty("gpr.user") as String? ?: System.getenv("USERNAME")
password = project.findProperty("gpr.key") as String? ?: System.getenv("TOKEN")
}
}
}
publications {
register("gpr") {
from(components["java"]) //This part fails with a Unresolved reference. None of the following
//candidates is applicable because of receiver type mismatch:
}
}
}
group = "me.jeppe"
version = "1.0-SNAPSHOT"
dependencies {
testImplementation(kotlin("test-junit"))
}
tasks.test {
useJUnit()
}
tasks.withType<KotlinCompile>() {
kotlinOptions.jvmTarget = "1.8"
}

Answer 1

After searching wide and far it appears that i need to write this:
register("gpr", MavenPublication::class)
instead of:
register("gpr")