前言

在对接身份证识别

项目编译后发现：Could not resolve all artifacts for configuration ‘:classpath’；这是什么鬼，然后常规clean、rebuild、offline work、修改本地gradle…一番操作之后，依然没用。最后上google寻求帮助，成功解决了这个问题。真凶尚不明确，怀疑是网络问题，资源库加载不下来。

解决办法如下：在根目录的build文件里加上这两句镜像代码，重新编译解决

错误提示

解决方法

添加阿里云镜像

 		google()
        jcenter()
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
        maven { url 'http://maven.aliyun.com/nexus/content/repositories/jcenter' }
        maven { url 'http://maven.aliyun.com/nexus/content/repositories/google' }
        maven { url 'http://maven.aliyun.com/nexus/content/repositories/gradle-plugin' }

和

	    google()
        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
        maven { url 'http://maven.aliyun.com/nexus/content/repositories/jcenter' }
        maven { url "https://jitpack.io" }
        maven { url 'http://repo1.maven.org/maven2' }
        maven { url 'http://maven.aliyun.com/nexus/content/repositories/google' }
        maven { url 'http://maven.aliyun.com/nexus/content/repositories/gradle-plugin' }