Flutter新建项目运行报错Exception in thread "main" java.net.ConnectException: Connection timed out

[删除（380066935@qq.com或微信通知）]

---

1. 修改flutter目录下\packages\flutter_tools\gradle\flutter.gradle

buildscript {
    repositories {
        //google() 
        //jcenter()
        //添加aliyun的镜像仓库
    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' }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.0'
    }
}

2.1 如果还是提示错误，通过查看android目录下的gradle-wrapper.properties查看版本，通过 Gradle官方下载地址，下载对应的Gradle版本zip文件放到，一般C盘目录下.gradle\wrapper\dists\对应版本目录中。