v6 server read addons_path of v5.10 when i start it

my problem is when i start v6 server it read v5.10 addons_path like this:

[2010-11-24 14:19:03,276][?] INFO:server:OpenERP version - 6.0.0-rc1
[2010-11-24 14:19:03,277][?] INFO:server:addons_path - /home/safa-y/Desktop/openerp-server-5.0.10/bin/addons
[2010-11-24 14:19:03,277][?] INFO:server:database hostname - localhost
[2010-11-24 14:19:03,277][?] INFO:server:database port - 5432
[2010-11-24 14:19:03,277][?] INFO:server:database user - safa-y
[2010-11-24 14:19:03,277][?] INFO:server:initialising distributed objects services
[2010-11-24 14:19:04,510][?] INFO:web-services:starting HTTP service at 0.0.0.0 port 8069
[2010-11-24 14:19:04,510][?] INFO:web-services:starting HTTPS service at 0.0.0.0 port 8071
[2010-11-24 14:19:04,510][?] INFO:web-services:Registered XML-RPC over HTTP
[2010-11-24 14:19:04,512][?] INFO:web-services:starting NET-RPC service at 0.0.0.0 port 8070
[2010-11-24 14:19:04,512][?] INFO:server:Starting 3 services
[2010-11-24 14:19:04,512][?] INFO:server:OpenERP server is running, waiting for connections...

and when trying to create new db occur this error :

[2010-11-24 14:20:18,922][template1] INFO:web-services:CREATE DATABASE: rrr
[2010-11-24 14:20:18,958][rrr] WARNING:init:module base: module not found
[2010-11-24 14:20:18,959][rrr] ERROR:web-services:[01]: CREATE DATABASE
[2010-11-24 14:20:18,959][rrr] ERROR:web-services:[02]: Traceback (most recent call last):
[2010-11-24 14:20:18,960][rrr] ERROR:web-services:[03]: File "/home/safa-y/Desktop/OOOPenerp/openerp-server-6.0.0-rc1/bin/service/web_services.py", line 94, in __call__
[2010-11-24 14:20:18,960][rrr] ERROR:web-services:[04]: File "/home/safa-y/Desktop/OOOPenerp/openerp-server-6.0.0-rc1/bin/tools/misc.py", line 64, in init_db
[2010-11-24 14:20:18,960][rrr] ERROR:web-services:[05]: File "/home/safa-y/Desktop/OOOPenerp/openerp-server-6.0.0-rc1/bin/addons/__init__.py", line 274, in get_module_resource
[2010-11-24 14:20:18,960][rrr] ERROR:web-services:[06]: TypeError: unsupported operand type(s) for +: 'bool' and 'str'

please someone help me...