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Translated from Chinese:
There was an error trying to retrieve the virtual switch list Hyper-V
At that time, the hand-dropped the network adapter located in Device Manager two drives about the virtual switch. caused the problem. I hope there is a god who can help me. Thank you!
Is this error happening in Azure or in your on premises environment.You need to provide more information about what you are trying to do and where the error occurred.
In azure you can directly run virtual machines. Try to avoid running Hyper V on a azure machine and running vms on top of it.
If you really want that scenario, try this nested virtualization doc from Azure
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