build.gradle

buildscript {
    ext.kotlin_version = "1.3.72"

    ext.versionCode = 109
    ext.versionName = "1.0.9"

    repositories {
        google()
        jcenter()
        mavenCentral()
        maven { url "https://jitpack.io" }
        maven { url 'https://maven.fabric.io/public' }
        maven { url 'https://dl.bintray.com/jetbrains/anko' } //这是你需要加入的
    }
    dependencies {
        classpath "com.android.tools.build:gradle:4.0.0"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'com.blankj:bus-gradle-plugin:2.6'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        mavenCentral()
        maven { url "https://jitpack.io" }
        maven { url 'https://maven.fabric.io/public' }
        maven { url 'https://dl.bintray.com/jetbrains/anko' } //这是你需要加入的
    }
}

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