Using legacy plugin application :

buildscript {
  repositories {
    maven {
      url = uri("https://plugins.gradle.org/m2/")
  dependencies {
    classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:2.1.0-Beta2")
apply(plugin = "org.jetbrains.kotlin.android")

Using the plugins DSL :

plugins {
  id "org.jetbrains.kotlin.android" version "2.1.0-Beta2"
Using legacy plugin application:
buildscript {
  repositories {
    maven {
      url "https://plugins.gradle.org/m2/"
  dependencies {
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:2.1.0-Beta2"
apply plugin: "org.jetbrains.kotlin.android"