Here is the error message:
% go get can\'t load package: package .: no buildable Go source files in /Users/7yan00 % echo $GOPATH /Users/7yan00/Gol
To resolve this for my situation:
I had to specify a more specific sub-package to install.
Wrong:
go get github.com/garyburd/redigo
Correct:
go get github.com/garyburd/redigo/redis