workclock/build.gradle

buildscript {
    repositories {
        jcenter()
        google()

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.0'
        classpath 'com.jakewharton:butterknife-gradle-plugin:10.1.0'  //添加这一行
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
        maven { url 'https://jitpack.io' }
        jcenter()
        google()
        maven {
            url 'http://www.idescout.com/maven/repo/'
            name 'IDEScout, Inc.'
        }
    }
}

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