build.gradle

ext {
    var = '4.7.1'
}// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    ext {
        kotlin_version = '1.6.0'
        retrofitVersion = '2.9.0'
    }
    repositories {
        mavenCentral()
        jcenter()
        // fabric.io
        maven {
            url 'https://maven.google.com/'
            name 'Google'
        }
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:4.1.3'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

allprojects {
    repositories {
        mavenCentral()
        jcenter()
        maven {
            url 'https://maven.google.com/'
            name 'Google'
        }
        maven {
            url "https://oss.sonatype.org/content/repositories/snapshots"
        }
        maven { url 'https://jitpack.io' }
        google()  // Google's Maven repository
    }

    project.ext {
        // these are common variables used in */build.gradle
        buildToolsVersion = "28.0.0"
    }
}

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