Comment 40 for bug 1529079

The error message is pretty clear. src/util/virsystemd.c does

        if (virDBusCallMethod(conn,
                              NULL,
                              &error,
                              "org.freedesktop.machine1",
                              "/org/freedesktop/machine1",
                              "org.freedesktop.machine1.Manager",
                              "CreateMachineWithNetwork",
[...]
                            "After", "as", 1, "libvirtd.service",
                             "Before", "as", 1, "libvirt-guests.service") < 0) {

and these properties are unknown/invalid for machines. You can't specify an ordering dependency to an object that you create *right now*, as there is no way to enforce them. So just dropping these two lines ought to fix it.

(Also, it would be nice if a failure to register to machined wasn't fatal)