build.gradle

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

buildscript {
    ext.kotlin_version = '1.3.40'
    repositories {
        google()
        mavenCentral()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.4.2'
        // butterknife需要的额外配置
         classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
        // 添加citypicker本地依赖额外配置
        // classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

allprojects {
    repositories {
        google()
        // android-pickers必须添加这行
        maven { url "https://jitpack.io" }
        mavenCentral()
        jcenter()
    }
}

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