无法下载并安装Go项目

I am a beginner to go languague and trying to download and install goa-cellar project. But I am not able to install using ssh or https github link

1.go get git@github.com:goadesign/goa-cellar.git

package git@github.com:goadesign/goa-cellar.git: unrecognized import    path "git@github.com:goadesign/goa-cellar.git" (https fetch: Get    https://git@github.com:goadesign/goa-cellar.git?go-get=1: dial tcp:    unknown port tcp/goadesign)

2.go get https://github.com/goadesign/goa-cellar.git

package https:/github.com/goadesign/goa-cellar.git: "https://" not allowed in import path

Kindly help me how to solve this ?

Install the package without to include the protocol (http/https).

go get github.com/goadesign/goa-cellar

Please be aware that you need to set the GOPATH environment variable. If you are not sure how to do that here is an article: https://golang.org/doc/code.html#GOPATH.