up-bmls/build.gradle

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

buildscript {

    repositories {
        google()
        //阿里镜像
        maven{ url 'http://maven.aliyun.com/nexus/content/groups/public/'}
//        jcenter()
        maven { url 'https://dl.bintray.com/umsdk/release' }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'
//        classpath 'com.mob.sdk:MobSDK:+'
        // 注册MobSDK
        classpath "com.mob.sdk:MobSDK:2018.0319.1724"
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
//        jcenter()
        //阿里镜像
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
        maven { url "https://jitpack.io" }
        mavenCentral()
        maven { url 'https://dl.bintray.com/umsdk/release' }
        google()
        // 添加下面的内容
        flatDir {
            dirs 'libs'
        }
    }
}

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