go install

Multiple versions of go

go path

go module

go get

go root

tip

인텔리제이에서 go module 을 못찾는다면 아래 setting 에서 integration 체크박스를 체크

Unresolved dependency in go.mod setting 에서 Please, enable Go modules integration under File | Settings | Go | Go Modules and disable Index entire GOPATH under File | Settings | Go | GOPATH.