cannot find package "golang.org/x/net/publicsuffix"

[Naategh]

When I try go build subover.go to install script, I get the following error:

/root/go/src/github.com/parnurzeal/gorequest/gorequest.go:32:2: cannot find package "golang.org/x/net/publicsuffix" in any of:
/usr/lib/go-1.11/src/golang.org/x/net/publicsuffix (from $GOROOT)
/root/go/src/golang.org/x/net/publicsuffix (from $GOPATH)

Please provide a complete installation guide.