cannot select main class in intellij run config

Question

I created a default kotlin project in intellij CE 2020.1 (latest).

1. File->New Project
2. Selected Java, Project SDK 14 (java version 14.0.1), Kotlin/JVM
3. Project src root is MyProject
4. Project structure is MyProject->src->Main.kt

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

In Edit Configurations I try to select Main.kt's main and OK button is disabled.
Cannot run Main class in Intellij

Answer 1

In edit > configurations > Main class it should say MainKt (yes, one word, uppercased K). You can write it manually without browsing through project files.