Flutter编译卡在Running Gradle task ‘assembleDebug

1、翻墙

2、修改国内镜像源（以下以Flutter 3.19.3版本为例）

1. 找到Flutter SDK目录下的Flutter配置文件resolve_dependencies.gradle

        路径：flutter/packages/flutter_tools/gradle/resolve_dependencies.gradle

        1)、第一处修改：

                google()
                mavenCentral()

               改为:

                maven { url 'https://maven.aliyun.com/repository/central' }
                maven { url 'https://maven.aliyun.com/repository/gradle-plugin' }
                maven { url 'https://maven.aliyun.com/repos