build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {

    ext {
        roomVersion = '2.2.3'
        archLifecycleVersion = '2.2.0-rc2'
        coreTestingVersion = '2.1.0'
        materialVersion = '1.0.0'
        lifecycle_version = "2.2.0"
        rxJavaVersion = '2.0.2'
        rxAndroidVersion = '2.0.1'
        javaxAnnotationVersion = '1.0'
    }


    repositories {
        google()
        jcenter()

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.3'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()

    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}