安装完openerp  

要设置数据库对外开放，配置过程中出现：

Server Error", "code": 200, "data": {"debug": "Server Traceback (most recent call last):\n File \"/usr/lib/pymodules/python2.7/openerp/addons/web/session.py\", line 89, in send\n return openerp.netsvc.dispatch_rpc(service_name, method, args)\n File \"/usr/lib/pymodules/python2.7/openerp/netsvc.py\", line 292, in dispatch_rpc\n result = ExportService.getService(service_name).dispatch(method, params)\n File \"/usr/lib/pymodules/python2.7/openerp/service/web_services.py\", line 122, in dispatch\n return fn(params)\n File \"/usr/lib/pymodules/python2.7/openerp/service/web_services.py\", line 359, in exp_list\n cr = db.cursor()\n File \"/usr/lib/pymodules/python2.7/openerp/sql_db.py\", line 484, in cursor\n return Cursor(self._pool, self.dbname, serialized=serialized)\n File \"/usr/lib/pymodules/python2.7/openerp/sql_db.py\", line 182, in __init__\n self._cnx = pool.borrow(dsn(dbname))\n File \"/usr/lib/pymodules/python2.7/openerp/sql_db.py\", line 377, in _locked\n return fun(self, *args, *kwargs)\n File \"/usr/lib/pymodules/python2.7/openerp/sql_db.py\", line 440, in borrow\n result = psycopg2.connect(dsn=dsn, connection_factory=PsycoConnection)\n File \"/usr/lib/python2.7/dist-packages/psycopg2/__init__.py\", line 179, in connect\n connection_factory=connection_factory, async=async)\nOperationalError: FATAL: role \"openerp\" does not exist\n\n\nClient Traceback (most recent call last):\n File \"/usr/lib/pymodules/python2.7/openerp/addons/web/http.py\", line 285, in dispatch\n r = method(self, **self.params)\n File \"/usr/lib/pymodules/python2.7/openerp/addons/web/controllers/main.py\", line 573, in index\n db, redir = db_monodb_redirect(req)\n File \"/usr/lib/pymodules/python2.7/openerp/addons/web/controllers/main.py\", line 98, in db_monodb_redirect\n return db_redirect(req, not config['list_db'])\n File \"/usr/lib/pymodules/python2.7/openerp/addons/web/controllers/main.py\", line 109, in db_redirect\n dbs = db_list(req, True)\n File \"/usr/lib/pymodules/python2.7/openerp/addons/web/controllers/main.py\", line 90, in db_list\n dbs = proxy.list(force)\n File \"/usr/lib/pymodules/python2.7/openerp/addons/web/session.py\", line 30, in proxy_method\n result = self.session.send(self.service_name, method, *args)\n File \"/usr/lib/pymodules/python2.7/openerp/addons/web/session.py\", line 103, in send\n raise xmlrpclib.Fault(openerp.tools.ustr(e), formatted_info)\nFault: 
    
     \n", "fault_code": "FATAL: role \"openerp\" does not exist\n", "type": "server_exception"}
    

/etc/openerp/openerp_service.conf