Vm and Ubuntu on mac

I have a problem with the very start of setting up ubuntu with a VM on mac

Result Code: NS_ERROR_FAILURE (0x80004005) Component: SessionMachine Interface: ISession {c0447716-ff5a-4795-b57a-ecd5fffa18a4}

This is after I try to add a DiskImage. I allowed it all on mac in security and privacy Any help would be appreciated thanks

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