Missing dot in first path element

I am also trying to import some packages from github and it allows me to get some packages and gives following error on some in the same repository

C:\Go\src>go get github.com/couchbase/query/datastore
go: finding github.com/couchbase/query latest
bytes\buffer.go:10:2: malformed module path “errors”: missing dot in first path element
internal\fmtsort\sort.go:13:2: malformed module path “sort”: missing dot in first path element

I have sucessfully get the github. com/couchbase/query path but gives error in the next files

Kindly help.