nvmw 下载不了node？

Start installing node/v0.12.1 (x64) to D:\nvmw\v0.12.1 Download from http://npm.taobao.org/mirrors/node/v0.12.1/x64/node.exe, and save it as D:\nvmw\v0.12.1\node.exe 0 Unknown Download D:\nvmw\v0.12.1\node.exe from http://npm.taobao.org/mirrors/node/v0.12. 1/x64/node.exe failed

一直是0 Unknown，无论什么版本