problem with statusbar_external

I use the latest snapshot (20070608) and statusbar_external script this way:
In my cfg_ion.lua I have:
-- ---
statusbar_external = {
...
}
dopath ("statusbar_external")
dopath("mod_statusbar")
-- ---
and on startup ion says:

Ion startup error log:
>> Errors starting ion-statusd:
   /usr/lib/ion3/bin/ion-statusd: Unable to find 'statusd_cpufreq' on
search path.
   /usr/lib/ion3/bin/ion-statusd: Unable to find 'statusd_acpibat' on
search path.
   /usr/lib/ion3/bin/ion-statusd: Unable to find 'statusd_cpupolicy'
on search path.

These are meters, defined in statusbar_external={}. And they work
fine! But such message is being displayed on each startup. Should I
try to fix statusbar_external.lua in any way or is it a mod_statusbar
issue?