Method "Register" with signature "oay" doesn't exist

[Marco Trapanese <marcotrapanese@gmail.com>]

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Hello,
when I start pulseaudio I get this error:

> org.freedesktop.DBus.Error.UnknownMethod: Method "Register" with 
> signature "oay" on interface "org.ofono.HandsfreeAudioManager" doesn't 
> exist

I'm running ofono 1.17 and pulseaudio 8.0.
Please, would you help me to understand if the problem is related to the 
compilation of ofono or to the dbus policies?

I attach the dbus conf files.

My system is a custom buildroot environment on RPi3 with kernel 4.4.8-v7
Thanks!
Marco


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<?xml version="1.0"?><!--*-nxml-*-->
<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
 "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">

<!--
This file is part of PulseAudio.

PulseAudio is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.

PulseAudio is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
-->

<busconfig>

  <!-- System-wide PulseAudio runs as 'pulse' user. This fragment is
       not necessary for user PulseAudio instances. -->

  <policy user="pulse">
    <allow own="org.pulseaudio.Server"/>
    <allow send_destination="org.bluez"/>
    <allow send_destination="org.ofono"/>
  </policy>

</busconfig>