import org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile allprojects { tasks.withType(AbstractKotlinCompile).configureEach { kotlinOptions { jvmTarget = "1.8" apiVersion = "1.8" languageVersion = "1.8" } } repositories { google() mavenCentral() } } rootProject.buildDir = '../build' subprojects { project.buildDir = "${rootProject.buildDir}/${project.name}" } subprojects { project.evaluationDependsOn(':app') } tasks.register("clean", Delete) { delete rootProject.buildDir }