我是openerp的新手。我创建了一个新模块，它已成功安装，一切正常。但是，当我尝试升级模块时，出现如下错误：
> 2013-05-09 14:59:45,117 7236 ←[1;31m←[1;49mERROR←[0m Fisc openerp.osv.osv: Uncaught exception
Traceback (most recent call last):
File "C:\OpenErp\openerp\openobject-server\openerp\osv\osv.py", line 121, in wrapper
return f(self, dbname, *args, **kwargs)
File "C:\OpenErp\openerp\openobject-server\openerp\osv\osv.py", line 176, in execute
res = self.execute_cr(cr, uid, obj, method, *args, **kw)
File "C:\OpenErp\openerp\openobject-server\openerp\osv\osv.py", line 164, in execute_cr
return getattr(object, method)(cr, uid, *args, **kw)
File "C:\OpenErp\openerp\openobject-server\openerp\addons\base\module\module.py", line 456, in button_immediate_upgra
return self._button_immediate_function(cr, uid, ids, self.button_upgrade, context=context)
File "C:\OpenErp\openerp\openobject-server\openerp\addons\base\module\module.py", line 418, in _button_immediate_func
_, pool = pooler.restart_pool(cr.dbname, update_module=True)
File "C:\OpenErp\openerp\openobject-server\openerp\pooler.py", line 39, in restart_pool
registry = RegistryManager.new(db_name, force_demo, status, update_module, True)
File "C:\OpenErp\openerp\openobject-server\openerp\modules\registry.py", line 176, in new
openerp.modules.load_modules(registry.db, force_demo, status, update_module)
File "C:\OpenErp\openerp\openobject-server\openerp\modules\loading.py", line 333, in load_modules
processed = load_marked_modules(cr, graph, states_to_load, force, status, report, loaded_modules)
File "C:\OpenErp\openerp\openobject-server\openerp\modules\loading.py", line 244, in load_marked_modules
loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules)
File "C:\OpenErp\openerp\openobject-server\openerp\modules\loading.py", line 179, in load_module_graph
load_update_xml(module_name, idref, mode)
File "C:\OpenErp\openerp\openobject-server\openerp\modules\loading.py", line 76, in <lambda>
load_update_xml = lambda *args: _load_data(cr, *args, kind='update_xml')
File "C:\OpenErp\openerp\openobject-server\openerp\modules\loading.py", line 119, in _load_data
tools.convert_csv_import(cr, module_name, pathname, fp.read(), idref, mode, noupdate)
File "C:\OpenErp\openerp\openobject-server\openerp\tools\convert.py", line 931, in convert_csv_import
raise Exception(_('Module loading failed: file %s/%s could not be processed:\n %s') % (module, fname, warning_msg))
Exception: Module loading failed: file crm_livechat/crm_livechat\security/ir.model.access.csv could not be processed:
Line 1 : No matching record found for external id 'crm.group_crm_user' in field 'Group'
2013-05-09 14:59:45,134 7236 ←[1;31m←[1;49mERROR←[0m Fisc openerp.netsvc: Module loading failed: file crm_livechat/crm_
Line 1 : No matching record found for external id 'crm.group_crm_user' in field 'Group'
Traceback (most recent call last):
File "C:\OpenErp\openerp\openobject-server\openerp\netsvc.py", line 361, in dispatch_rpc
result = ExportService.getService(service_name).dispatch(method, params)
File "C:\OpenErp\openerp\openobject-server\openerp\service\web_services.py", line 585, in dispatch
res = fn(db, uid, *params)
File "C:\OpenErp\openerp\openobject-server\openerp\osv\osv.py", line 167, in execute_kw
return self.execute(db, uid, obj, method, *args, **kw or {})
File "C:\OpenErp\openerp\openobject-server\openerp\osv\osv.py", line 121, in wrapper
return f(self, dbname, *args, **kwargs)
File "C:\OpenErp\openerp\openobject-server\openerp\osv\osv.py", line 176, in execute
res = self.execute_cr(cr, uid, obj, method, *args, **kw)
File "C:\OpenErp\openerp\openobject-server\openerp\osv\osv.py", line 164, in execute_cr
return getattr(object, method)(cr, uid, *args, **kw)
File "C:\OpenErp\openerp\openobject-server\openerp\addons\base\module\module.py", line 456, in button_immediate_upgra
return self._button_immediate_function(cr, uid, ids, self.button_upgrade, context=context)
File "C:\OpenErp\openerp\openobject-server\openerp\addons\base\module\module.py", line 418, in _button_immediate_func
_, pool = pooler.restart_pool(cr.dbname, update_module=True)
File "C:\OpenErp\openerp\openobject-server\openerp\pooler.py", line 39, in restart_pool
registry = RegistryManager.new(db_name, force_demo, status, update_module, True)
File "C:\OpenErp\openerp\openobject-server\openerp\modules\registry.py", line 176, in new
openerp.modules.load_modules(registry.db, force_demo, status, update_module)
File "C:\OpenErp\openerp\openobject-server\openerp\modules\loading.py", line 333, in load_modules
processed = load_marked_modules(cr, graph, states_to_load, force, status, report, loaded_modules)
File "C:\OpenErp\openerp\openobject-server\openerp\modules\loading.py", line 244, in load_marked_modules
loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules)
File "C:\OpenErp\openerp\openobject-server\openerp\modules\loading.py", line 179, in load_module_graph
load_update_xml(module_name, idref, mode)
File "C:\OpenErp\openerp\openobject-server\openerp\modules\loading.py", line 76, in <lambda>
load_update_xml = lambda *args: _load_data(cr, *args, kind='update_xml')
File "C:\OpenErp\openerp\openobject-server\openerp\modules\loading.py", line 119, in _load_data
tools.convert_csv_import(cr, module_name, pathname, fp.read(), idref, mode, noupdate)
File "C:\OpenErp\openerp\openobject-server\openerp\tools\convert.py", line 931, in convert_csv_import
raise Exception(_('Module loading failed: file %s/%s could not be processed:\n %s') % (module, fname, warning_msg))
Exception: Module loading failed: file crm_livechat/crm_livechat\security/ir.model.access.csv could not be processed:
Line 1 : No matching record found for external id 'crm.group_crm_user' in field 'Group'
> c:\openerp\openerp\openobject-server\openerp\tools\convert.py(931)convert_csv_import()
-> raise Exception(_('Module loading failed: file %s/%s could not be processed:\n %s') % (module, fname, warning_msg))