我想知道如何通过Odoo中的代码来关联2个CHAR字段。第一个字段在product.template HS CODE中，另一个字段在account.invoice.line中，是一个自定义字段。
我该怎么做？我有这个错误信息
Error:
Odoo Server Error
Traceback (most recent call last):
File "/home/ubuntu/OdooAddons/odoo/odoo/http.py", line 656, in _handle_exception
return super(JsonRequest, self)._handle_exception(exception)
File "/home/ubuntu/OdooAddons/odoo/odoo/http.py", line 314, in _handle_exception
raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
File "/home/ubuntu/OdooAddons/odoo/odoo/tools/pycompat.py", line 87, in reraise
raise value
File "/home/ubuntu/OdooAddons/odoo/odoo/http.py", line 698, in dispatch
result = self._call_function(**self.params)
File "/home/ubuntu/OdooAddons/odoo/odoo/http.py", line 346, in _call_function
return checked_call(self.db, *args, **kwargs)
File "/home/ubuntu/OdooAddons/odoo/odoo/service/model.py", line 98, in wrapper
return f(dbname, *args, **kwargs)
File "/home/ubuntu/OdooAddons/odoo/odoo/http.py", line 339, in checked_call
result = self.endpoint(*a, **kw)
File "/home/ubuntu/OdooAddons/odoo/odoo/http.py", line 941, in __call__
return self.method(*args, **kw)
File "/home/ubuntu/OdooAddons/odoo/odoo/http.py", line 519, in response_wrap
response = f(*args, **kw)
File "/home/ubuntu/OdooAddons/odoo/addons/web/controllers/main.py", line 967, in call_button
action = self._call_kw(model, method, args, {})
File "/home/ubuntu/OdooAddons/odoo/addons/web/controllers/main.py", line 955, in _call_kw
return call_kw(request.env[model], method, args, kwargs)
File "/home/ubuntu/OdooAddons/odoo/odoo/api.py", line 759, in call_kw
return _call_kw_multi(method, model, args, kwargs)
File "/home/ubuntu/OdooAddons/odoo/odoo/api.py", line 746, in _call_kw_multi
result = method(recs, *args, **kwargs)
File "<decorator-gen-67>", line 2, in button_immediate_upgrade
File "/home/ubuntu/OdooAddons/odoo/odoo/addons/base/models/ir_module.py", line 74, in check_and_log
return method(self, *args, **kwargs)
File "/home/ubuntu/OdooAddons/odoo/odoo/addons/base/models/ir_module.py", line 627, in button_immediate_upgrade
return self._button_immediate_function(type(self).button_upgrade)
File "/home/ubuntu/OdooAddons/odoo/odoo/addons/base/models/ir_module.py", line 561, in _button_immediate_function
modules.registry.Registry.new(self._cr.dbname, update_module=True)
File "/home/ubuntu/OdooAddons/odoo/odoo/modules/registry.py", line 86, in new
odoo.modules.load_modules(registry._db, force_demo, status, update_module)
File "/home/ubuntu/OdooAddons/odoo/odoo/modules/loading.py", line 417, in load_modules
force, status, report, loaded_modules, update_module, models_to_check)
File "/home/ubuntu/OdooAddons/odoo/odoo/modules/loading.py", line 313, in load_marked_modules
perform_checks=perform_checks, models_to_check=models_to_check
File "/home/ubuntu/OdooAddons/odoo/odoo/modules/loading.py", line 194, in load_module_graph
registry.setup_models(cr)
File "/home/ubuntu/OdooAddons/odoo/odoo/modules/registry.py", line 275, in setup_models
model._setup_fields()
File "/home/ubuntu/OdooAddons/odoo/odoo/models.py", line 2656, in _setup_fields
field.setup_full(self)
File "/home/ubuntu/OdooAddons/odoo/odoo/fields.py", line 520, in setup_full
self._setup_related_full(model)
File "/home/ubuntu/OdooAddons/odoo/odoo/fields.py", line 563, in _setup_related_full
field = target._fields[name]
KeyError: 'hs_code'
感谢
解决方案是将delivery_hs_code模块添加到清单文件中的depends条目中。谢谢Kenly