I'm getting this error message when I try to run ./namebench after following all of the instructions. I downloaded node-webkit from [here](http://dl.node-webkit.org/v0.10.2/node-webkit-v0.10.2-linux-x64.tar.gz). It says that it failed to unzip the package file: /Users/Logan/go/src/github.com/google/namebench/./ui/app.nw 
I'm getting this error message when I try to run ./namebench after following all of the instructions. I downloaded node-webkit from here.
It says that it failed to unzip the package file: /Users/Logan/go/src/github.com/google/namebench/./ui/app.nw