Last weekend I was doing a cold migration of one of our VMs and when the migration was one step before it would be done the following error popped up:
Invalid configuration for device 15.
Must admit, that wasn’t one of the helpful messages I expected to see. Anyway, quick googling led me to the following article at kb.vmware.com with more information and a workaround that finally helped me to finish the task.
Hope that would save someone’s time in the future.