build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
apply from: "config.gradle"
buildscript {
    repositories {
        google()
        jcenter()
        maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
        classpath 'com.jakewharton:butterknife-gradle-plugin:9.0.0-SNAPSHOT'
        //如果 ButterKnife 插件和其他插件发生冲突而报错请试试 v8.4.0 版本的 ButterKnife 插件, 注意 v8.4.0 最高只能支持 com.android.tools.build:gradle:3.0.1
//        classpath 'com.jakewharton:butterknife-gradle-plugin:8.4.0'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven { url "https://jitpack.io" }
    }
}

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