gradle下载地址

http://services.gradle.org/distributions

注意事项

注意如果用safria下载一定要关闭自动解压一定要用下载之后的zip包，切记。

如果不关闭,Safiri会自动把zip包解压缩了,如果你重新压缩Safiri下载的文件成zip放到路径下面，会出这样的“Error:Gradle distribution ‘https://services.gradle.org/distributions/gradle-2.9-all.zip' contains too many directories. Expected to find exactly 1 directory.”错误

以gradle-3.3-all为例说明

cd .gradle/wrapper/dists/gradle-3.3-all
cd 55gk2rcmfc6p2dg9u9ohc3hw9/
rm *
cp ~/Downloads/gradle-3.3-all.zip .

之后重启android studio 就ok了

参考

http://www.cnblogs.com/thtlovelife/p/5872801.html