➜   virsh -c vbox:///session list

error: failed to connect to the hypervisor

error: internal error: Failed to create vbox driver object.

virsh -V

Virsh command line tool of libvirt 4.10.0

See web site at https://libvirt.org/

Compiled with support for:

 Hypervisors: QEMU/KVM VMware VirtualBox ESX Test

 Networking: Remote Bridging

 Storage: Dir

 Miscellaneous: Daemon Secrets Debug

➜   uname -a

Darwin khb-Air-REAL-2.local 17.7.0 Darwin Kernel Version 17.7.0: Thu Jun 21 22:53:14 PDT 2018; root:xnu-4570.71.2~1/RELEASE_X86_64 x86_64