On Wed, May 13, 2020 at 10:24:41AM -0300, claudia freitas wrote: That means the following code in libvirt is failing if (gVBoxAPI.UPFN.Initialize(vbox_driver) != 0) return -1; if (vbox_driver->vboxObj == NULL) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("IVirtualBox object is null")); return -1; } This says the VirtualBox SDK is failing to initialize. I don't know enough about virtualbox to say what the likely cause would be though. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|