1，“could not install gradle distribution from gradle-2.8.-all.zip”
解决办法：
将工程根目录下的gradlewrapper下面的gradle-wrapper.properties文件中如图所示的地方，改为与本机相同的granle版本即可
（我的是2.4的版本）然后通过 New -> Import Project...导入即可。
2,安装android studio报错Failed to install Intel HAXM.
http://www.mamicode.com/info-detail-881405.html
3，java.lang.IllegalStateException: Multi dex requires Build Tools 21.0.0 / Current: 19.1
http://stackoverflow.com/questions/36051399/please-i-just-updated-my-android-studio-and-im-getting-this-error