allprojects { repositories { maven { url 'https://maven.aliyun.com/repository/google' } maven { url 'https://maven.aliyun.com/repository/central' } maven { url 'https://maven.aliyun.com/nexus/content/groups/public/' } google() mavenCentral() } } rootProject.buildDir = "../build" subprojects { project.buildDir = "${rootProject.buildDir}/${project.name}" } subprojects { project.evaluationDependsOn(":app") } tasks.register("clean", Delete) { delete rootProject.buildDir }