plugins { id 'com.google.gms.google-services' version '4.4.2' apply false } allprojects { repositories { gradlePluginPortal() google() mavenCentral() } subprojects { afterEvaluate { project -> if (project.hasProperty('android')) { project.android { if (namespace == null) { namespace project.group } } } } } } rootProject.buildDir = '../build' subprojects { project.buildDir = "${rootProject.buildDir}/${project.name}" } subprojects { project.evaluationDependsOn(':app') } tasks.register("clean", Delete) { delete rootProject.buildDir }