Kotlin: Cannot access class 'javafx.scene.Node'. Check your module classpath for missing or conflicting dependencies

Just trying this out as a beginner and get this error.

Kotlin: Cannot access class 'javafx.scene.Node'. Check your module classpath for missing or conflicting dependencies

Here is my code

import tornadofx.*

class HelloWorld : View(){

    override val root = vbox {
    }
}

fun main(args: Array<String>) {
    println("Hello, World")
}

The compile error is on the View()

[edvin]

It sounds like you’re using Java 9 or later with TornadoFX 1, which only supports Java 8.

[SchweinchenFuntik]

append log-file (or console output) and example code? and settings build (maven - pom.xml, gradle - build.gradle[.kts])