build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    ext {
        kotlin_version = '1.4.0'
        retrofitVersion = '2.9.0'
        okhttpLoggingInterceptorVersion = '4.8.1'

        coroutines = '1.3.9'
        appCompatVersion = '1.2.0'
        constraintLayoutVersion = '2.0.4'
        coreTestingVersion = '2.1.0'
        lifecycleVersion = '2.2.0'
        materialVersion = '1.2.1'
        // testing
        junitVersion = '4.13.1'
        espressoVersion = '3.3.0'
        androidxJunitVersion = '1.1.2'
    }

    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:7.0.0"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.20"

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

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