Can't select Edition Looker (Google Cloud core) instance.

[hoangle]

Hi all,

I can't select Edition when creating a Looker instance as the picture below. I did complete all the steps in instruction https://cloud.google.com/looker/docs/looker-core-instance-create , but stopped at the step select Edition, it shows "You do not have quota available for this option", I have chosen any regions but still the same.