build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    ext.kotlin_version = '1.6.20'
    ext.nav_version = "2.3.5"

    repositories {
        google()
        mavenCentral()
        maven { url 'https://jitpack.io' }
    }

    repositories {
        // Check that you have the following line (if not, add it):
        google()  // Google's Maven repository

    }
    dependencies {
        classpath "com.android.tools.build:gradle:7.0.4"
        classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.10'
        classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"
        classpath 'com.google.gms:google-services:4.3.10'

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

}

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