Via bluetooth, I get "error while initializing syncengine: (null)"

I assume it could be due to several reasons. I've used a sample code from a website:

Code:
<config>
	<bluetooth_address>AD:DR:OF:MY:FO:NE</bluetooth_address>
	<bluetooth_channel>10</bluetooth_channel>
	<interface>0</interface>
	<identifier>PC Suite</identifier>
	<version>1</version>
	<wbxml>1</wbxml>
	<username></username>
	<password></password>
	<type>2</type>
	<usestringtable>1</usestringtable>
	<onlyreplace>0</onlyreplace>
	<recvLimit>0</recvLimit>
	<maxObjSize>0</maxObjSize>
	<contact_db>Contacts</contact_db>
	<calendar_db>Calendar</calendar_db>
	<note_db>Notes</note_db>
</config>
But meh, I get this nasty error.