Hyper V3 is 1 year old and not yet supported?
I first tried to migrated VM with a P2V but failed each time, maybe the cause of W2K12 Integration Tools into my W2K8R2 VM, that's why I tried with an Hyper-V convertion.
If Hyper-v V3 is not supported, I will have to re install an production VM manually into VMware, burk; Many time lost unusefully