Not able to build

[avinash-ghadshi]

root@root:~/go/src/github.com/freetaxii/server/cmd/freetaxii# go build freetaxii.go
../../../libstix2/datastore/sqlite3/s_baseobject.go:16:2: cannot find package "github.com/freetaxii/libstix2/objects/baseobject" in any of:
/usr/lib/go-1.14/src/github.com/freetaxii/libstix2/objects/baseobject (from $GOROOT)
/root/go/src/github.com/freetaxii/libstix2/objects/baseobject (from $GOPATH)
../../internal/config/serverConfig.go:13:2: cannot find package "github.com/freetaxii/libstix2/resources/apiroot" in any of:
/usr/lib/go-1.14/src/github.com/freetaxii/libstix2/resources/apiroot (from $GOROOT)
/root/go/src/github.com/freetaxii/libstix2/resources/apiroot (from $GOPATH)
../../../libstix2/datastore/datastore.go:8:8: cannot find package "github.com/freetaxii/libstix2/resources/collections" in any of:
/usr/lib/go-1.14/src/github.com/freetaxii/libstix2/resources/collections (from $GOROOT)
/root/go/src/github.com/freetaxii/libstix2/resources/collections (from $GOPATH)
../../internal/config/serverConfig.go:15:2: cannot find package "github.com/freetaxii/libstix2/resources/discovery" in any of:
/usr/lib/go-1.14/src/github.com/freetaxii/libstix2/resources/discovery (from $GOROOT)
/root/go/src/github.com/freetaxii/libstix2/resources/discovery (from $GOPATH)
../../../libstix2/datastore/sqlite3/t_collectiondata.go:18:2: cannot find package "github.com/freetaxii/libstix2/resources/envelope" in any of:
/usr/lib/go-1.14/src/github.com/freetaxii/libstix2/resources/envelope (from $GOROOT)
/root/go/src/github.com/freetaxii/libstix2/resources/envelope (from $GOPATH)
../../../libstix2/datastore/sqlite3/t_collectiondataManifest.go:16:2: cannot find package "github.com/freetaxii/libstix2/resources/manifest" in any of:
/usr/lib/go-1.14/src/github.com/freetaxii/libstix2/resources/manifest (from $GOROOT)
/root/go/src/github.com/freetaxii/libstix2/resources/manifest (from $GOPATH)
../../internal/handlers/contentHandler.go:18:2: cannot find package "github.com/freetaxii/libstix2/resources/status" in any of:
/usr/lib/go-1.14/src/github.com/freetaxii/libstix2/resources/status (from $GOROOT)
/root/go/src/github.com/freetaxii/libstix2/resources/status (from $GOPATH)
../../internal/handlers/errors.go:13:2: cannot find package "github.com/freetaxii/libstix2/resources/taxiierror" in any of:
/usr/lib/go-1.14/src/github.com/freetaxii/libstix2/resources/taxiierror (from $GOROOT)
/root/go/src/github.com/freetaxii/libstix2/resources/taxiierror (from $GOPATH)
../../../libstix2/datastore/sqlite3/t_collectiondata.go:19:2: cannot find package "github.com/freetaxii/libstix2/resources/versions" in any of:
/usr/lib/go-1.14/src/github.com/freetaxii/libstix2/resources/versions (from $GOROOT)
/root/go/src/github.com/freetaxii/libstix2/resources/versions (from $GOPATH)