1.安卓官网下载的
修改build.gradle
maven{ url = "https://maven.aliyun.com/nexus/content/groups/public/" }
2.模拟器报HAXM问题
查看这个文章
android studio HAXM device is not found最简单的解决方法
打开Android Studio 在右上角找到SDK Manager
然后Android SDK ->SDK Tools中找到Intel x86 Emulator Accelerator(HAXM installer)
重新安装即可(卸载:先取消勾选,然后点击ok;安装:重新打开这个界面,勾选上,然后ok)
Gradle sync failed: Sync failed: reason unknown
https://blog.youkuaiyun.com/qq_28078489/article/details/120024317