修改Gradle国内源地址

在 build.gradle 文件内修改/添加 repositories 配置

repositories {
    maven {
        url "http://maven.aliyun.com/nexus/content/groups/public"
    }
}

allprojects {
    repositories {
        maven {
            url "http://maven.aliyun.com/nexus/content/groups/public"
        }
    }
}