importing issue

[rockershead]

Hi,
I keep getting an import error:
fluent-bit-output-pubsub.go:14:2: cannot find package "cloud.google.com/go/pubsub" in any of:
/usr/lib/go-1.7/src/cloud.google.com/go/pubsub (from $GOROOT)
/opt/td-agent-bit/lib/fluent-bit-output-pubsub/src/cloud.google.com/go/pubsub (from $GOPATH)
fluent-bit-output-pubsub.go:12:2: cannot find package "github.com/fluent/fluent-bit-go/output" in any of:
/usr/lib/go-1.7/src/github.com/fluent/fluent-bit-go/output (from $GOROOT)
/opt/td-agent-bit/lib/fluent-bit-output-pubsub/src/github.com/fluent/fluent-bit-go/output (from $GOPATH)
.Pls help.