EDIT: disregard question below, I finally found the fine print answer:
"The minimum supported version for Oculus development is Unity Editor version 2017.4.11f1."
Sigh. Thanks anyway.
Just picking up development again after a six month hiatus and it appears the current Oculus SDK is no longer compatible with Unity5.
This is the current link I tried:https://assetstore.unity.com/packages/tools/integration/oculus-integration-82022
Is Unity5 still usable for OculusGo development?