build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        jcenter()
        maven {
            url 'https://maven.google.com'
        }
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:4.0.0'
    }
}

allprojects {
    repositories {
        jcenter()
        maven {
            url 'https://oss.sonatype.org/content/groups/public'
        }
        maven {
            url "http://dl.bintray.com/jenzz/maven"
        }
    }
    gradle.projectsEvaluated {
        tasks.withType(JavaCompile) {
            options.compilerArgs << "-Xlint:fallthrough"
        }
    }
}