Error: too early for operation, device not yet seeded or device model not acknowledged

That worked! Thanx @ogra. Those issues with Hyper-V just had me going it was the same issue with the Core image. Now I can get around it on the Hyper-V images by purging and the Core image is built and up and working and I can move forward and try to get my own snap into it.

Many thanx! Too many landmines being a newbie on this. I wouldn’t have solved it by myself without someone removing the blindfold from my eyes.