Android——Unable to resolve dependency for ‘:app@debugcompileClasspath‘: Could not resolve com.andro

网上说了一堆要修改gradle.properties文件，注释掉后四行，如果没有这个文件呢？如果没有设置代理呢？你可以常识一下方法

buildscript { repositories { maven{ url 'http://maven.aliyun.com/nexus/content/groups/public/'} maven { url 'https://maven.aliyun.com/repository/google' } //jcenter() //google() } dependencies { classpath 'com.android.tools.build:gradle:3.4.2' // NOTE: Do not place your application dependencies here; they belong // in the individual module build.gradle files } } allprojects { repositories { //google() //jcenter() maven{ url 'http://maven.aliyun.com/nexus/content/groups/public/'} maven { url 'https://maven.aliyun.com/repository/google' } } }

注：gradle是你原本的版本就可以