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如题目所示。

Your version of OpenERP is unsupported. Support & maintenance services are available here: OpenERP Entreprise.
OpenERP Server Error
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Client Traceback (most recent call last):
  File "C:\Program Files (x86)\OpenERP 6.1-20121030-002944\Server\server\openerp\addons\web\common\http.py", line 180, in dispatch
  File "C:\Program Files (x86)\OpenERP 6.1-20121030-002944\Server\server\openerp\addons\web\controllers\main.py", line 356, in get_list
  File "C:\Program Files (x86)\OpenERP 6.1-20121030-002944\Server\server\openerp\addons\web\common\openerplib\main.py", line 117, in proxy
  File "C:\Program Files (x86)\OpenERP 6.1-20121030-002944\Server\server\openerp\addons\web\common\http.py", line 608, in send


Server Traceback (most recent call last):
  File "C:\Program Files (x86)\OpenERP 6.1-20121030-002944\Server\server\openerp\addons\web\common\http.py", line 593, in send
  File "C:\Program Files (x86)\OpenERP 6.1-20121030-002944\Server\server.\openerp\netsvc.py", line 360, in dispatch_rpc
  File "C:\Program Files (x86)\OpenERP 6.1-20121030-002944\Server\server.\openerp\service\web_services.py", line 117, in dispatch
  File "C:\Program Files (x86)\OpenERP 6.1-20121030-002944\Server\server.\openerp\service\web_services.py", line 323, in exp_list
  File "C:\Program Files (x86)\OpenERP 6.1-20121030-002944\Server\server.\openerp\sql_db.py", line 465, in cursor
  File "C:\Program Files (x86)\OpenERP 6.1-20121030-002944\Server\server.\openerp\sql_db.py", line 173, in init
  File "C:\Program Files (x86)\OpenERP 6.1-20121030-002944\Server\server.\openerp\sql_db.py", line 366, in _locked
  File "C:\Program Files (x86)\OpenERP 6.1-20121030-002944\Server\server.\openerp\sql_db.py", line 421, in borrow
OperationalError: could not connect to server: Connection refused (0x0000274D/10061)
Is the server running on host "localhost" and accepting
TCP/IP connections on port 5432?
could not connect to server: Connection refused (0x0000274D/10061)
Is the server running on host "localhost" and accepting
TCP/IP connections on port 5432?

他要记录如下信息：
今天卖了20个西瓜给李四，共20斤，每斤1.5，收30元
王五下单买10个西瓜，收货时按实际重量给钱

上面的是大概的企业流程

也就是说，客户下单以辅助数量为准，工厂生产两个单位兼具，财务收款以主单位为准