引入xutils3依赖，结果包找不到
maven里面添加阿里云镜像
核心
maven { url =uri("https://maven.aliyun.com/nexus/content/groups/public/") }
repositories {google()maven { url =uri("https://maven.aliyun.com/nexus/content/groups/public/") }maven { url=uri("https://maven.aliyun.com/repository/jcenter") }mavenCentral()maven { url=uri("https://www.jitpack.io")}}
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