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-rc'
    repositories {
        google()
        jcenter()
        maven { url 'https://dl.bintray.com/kotlin/kotlin-eap' }

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.6.3'
        def nav_version = "2.1.0"
        classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"
        classpath 'com.google.gms:google-services:4.3.3'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

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

allprojects {
    repositories {
        google()
        jcenter()
        maven { url "https://jitpack.io" }


    }
}

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