运行环境
操作系统：macOS Sierra 10.12.1
jdk版本：1.8.0_101
项目运行报错（react-native run-android）
根据网上教程，安装了安卓运行环境，初始化项目执行react-native run-android
本以为一切会顺利，结果报如下错误
Failed to notify ProjectEvaluationListener.afterEvaluate(), but primary configuration failure takes precedence.
java.lang.RuntimeException: SDK location not found. Define location with sdk.dir in the local.properties file or with an ANDROID_HOME environment variable.
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* What went wrong:
A problem occurred evaluating project ':app'.
> SDK location not found. Define location with sdk.dir in the local.properties file or with an ANDROID_HOME environment variable.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 18.729 secs
Could not install the app on the device, read the error above for details.
Make sure you have an Android emulator running or a device connected and have
set up your Android development environment:
https://facebook.github.io/react-native/docs/android-setup.html
anderror1.jpeg
anderror2.jpeg
��但是经过仔细对照�官网和网上资料，发现我的环境并没有问题，后来在 stackoverflow 上找到了 答案
具体做法是：在项目中 andorid�文件夹下新建一个名为local.properties 的文件
内容写：
sdk.dir=�你的sdk的路径
保存后重新运行项目就ok了。
