+ | Libvirt.Virterror err ->
+ "Libvirt error",
+ sprintf "libvirt reported an error:
+
+%s
+
+To get more information about libvirt errors, run guestfs-browser
+from the command line like this:
+
+LIBVIRT_DEBUG=1 guestfs-browser"
+ (Libvirt.Virterror.to_string err)
+