Android Studio一直在download - 修改Gradle使用国内源 - 阿里云Maven镜像仓库地址 - 报错platform ‘android-30‘ not found.
修改Project模式下的/build.gradle换源//Top-levelbuildfilewhereyoucanaddconfigurationoptionscommontoallsub-projects/modules.buildscript{repositories{maven{url'https://plugins.gradle.org/m2/'}maven{url'https://m