打开项目中 build.gradle 文件
buildscript { repositories { //google() //jcenter() maven { url 'https://maven.aliyun.com/repository/google' } maven { url 'https://maven.aliyun.com/repository/jcenter' } maven { url 'http://maven.aliyun.com/nexus/content/groups/public'} maven { url "http://download.flutter.io" } } dependencies { classpath 'com.android.tools.build:gradle:4.0.1' } } allprojects { repositories { //google() //jcenter() maven { url 'https://maven.aliyun.com/repository/google' } maven { url 'https://maven.aliyun.com/repository/jcenter' } maven { url 'http://maven.aliyun.com/nexus/content/groups/public'} maven { url "http://download.flutter.io" } } }