build.gradle

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

buildscript {
    ext.kotlin_version = '1.2.0'

    repositories {
        google()
        jcenter()
        mavenCentral()
        maven {
            url 'https://maven.fabric.io/public'
        }

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.3'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
        classpath 'com.google.gms:google-services:3.2.1'

        classpath 'io.fabric.tools:gradle:1.25.3'
        classpath 'com.google.firebase:firebase-plugins:1.1.5'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}
apply plugin: 'kotlin'

allprojects {
    repositories {
        google()
        jcenter()
        maven {
            url "https://jitpack.io"
        }
        maven {
            url "https://maven.google.com" // Google's Maven repository
        }

    }
}

//task clean(type: Delete) {
//    delete rootProject.buildDir
//}
repositories {
    mavenCentral()
}
dependencies {
    compile 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.2.31'
    implementation files('app/libs/ipay88_androidv7.jar')
}
compileKotlin {
    kotlinOptions {
        jvmTarget = "1.8"
    }
}
compileTestKotlin {
    kotlinOptions {
        jvmTarget = "1.8"
    }
}