Android 原生混合flutte运行：Could not resolve io.flutter。

Android 原生项目混合开发flutter ，在运行新项目的时候报错。

> Could not resolve io.flutter:flutter_embedding_debug:1.0.0-2a3401c9bbb5a9a9aec74d4f735d18a9dd3ebf2d.

 解决方案

添加    url "https://storage.flutter-io.cn/download.flutter.io"

 repositories {
     maven {
            url "https://storage.flutter-io.cn/download.flutter.io"
        }
    }
    
 repositories {
     maven {
            url "https://storage.flutter-io.cn/download.flutter.io"
        }
}    

按照上面的方式，完美的运行了Android混合flutter的项目。