安装github.com/rogpeppe/godef失败

Question

I use Go: Install/Update Tools in VSCode to install gocode and godef but I get this error :

Installing github.com/stamblerre/gocode FAILED Installing github.com/rogpeppe/godef FAILED

and in the output ->

""D:\Krittawat\Learn\GoWorkspace\src\github.com\stamblerre\gocode" is not using a known version control system" and ""D:\Krittawat\Learn\GoWorkspace\src\github.com\stamblerre\gocode" is not using a known version control system"

I check my GOPATH GOROOT GOBIN by using "go env" and this is my GOPATH GOROOT and GOBIN

set GOPATH=D:\Krittawat\Learn\GoWorkspace
set GOROOT=D:\Krittawat\Programs\go1.12.7.windows-amd64\go
set GOBIN=

I don't know how to solve it. I searching for solutions, but nothing works.