通过Studio添加的新模型会导致计算字段出现KeyError

如何解决通过Studio添加的新模型会导致计算字段出现KeyError

[Odoo v13云版]

我通过Studio添加了一个新模型：crm.lead.activities。在该模型中，我有一个计算字段x_name：

相关性：x_res_id，x_date，x_activity_type_id

计算：

for record in self:
  record['x_name'] = record.x_res_id.name + ' / ' + str(record.x_date) + ' / ' + record.x_activity_type_id.name

x_res_id是crm.lead

的 many2one 字段

但是，当我尝试（取消）安装模块时，出现KeyError。我该怎么解决？

Odoo Server Error
Traceback (most recent call last):
  File "/home/odoo/src/odoo/13.0/odoo/http.py",line 624,in _handle_exception
    return super(JsonRequest,self)._handle_exception(exception)
  File "/home/odoo/src/odoo/13.0/odoo/http.py",line 310,in _handle_exception
    raise pycompat.reraise(type(exception),exception,sys.exc_info()[2])
  File "/home/odoo/src/odoo/13.0/odoo/tools/pycompat.py",line 14,in reraise
    raise value
  File "/home/odoo/src/odoo/13.0/odoo/http.py",line 669,in dispatch
    result = self._call_function(**self.params)
  File "/home/odoo/src/odoo/13.0/odoo/http.py",line 350,in _call_function
    return checked_call(self.db,*args,**kwargs)
  File "/home/odoo/src/odoo/13.0/odoo/service/model.py",line 94,in wrapper
    return f(dbname,**kwargs)
  File "/home/odoo/src/odoo/13.0/odoo/http.py",line 339,in checked_call
    result = self.endpoint(*a,**kw)
  File "/home/odoo/src/odoo/13.0/odoo/http.py",line 915,in __call__
    return self.method(*args,line 515,in response_wrap
    response = f(*args,**kw)
  File "/home/odoo/src/odoo/13.0/addons/web/controllers/main.py",line 1326,in call_button
    action = self._call_kw(model,method,args,kwargs)
  File "/home/odoo/src/odoo/13.0/addons/web/controllers/main.py",line 1314,in _call_kw
    return call_kw(request.env[model],kwargs)
  File "/home/odoo/src/odoo/13.0/odoo/api.py",line 387,in call_kw
    result = _call_kw_multi(method,model,line 374,in _call_kw_multi
    result = method(recs,**kwargs)
  File "<decorator-gen-66>",line 2,in button_immediate_upgrade
  File "/home/odoo/src/odoo/13.0/odoo/addons/base/models/ir_module.py",line 72,in check_and_log
    return method(self,**kwargs)
  File "/home/odoo/src/odoo/13.0/odoo/addons/base/models/ir_module.py",line 634,in button_immediate_upgrade
    return self._button_immediate_function(type(self).button_upgrade)
  File "/home/odoo/src/custom/trial/saas_trial/models/module.py",line 99,in _button_immediate_function
    res = super(IrModuleModule,self)._button_immediate_function(function)
  File "/home/odoo/src/odoo/13.0/odoo/addons/base/models/ir_module.py",line 573,in _button_immediate_function
    modules.registry.Registry.new(self._cr.dbname,update_module=True)
  File "/home/odoo/src/odoo/13.0/odoo/modules/registry.py",line 86,in new
    odoo.modules.load_modules(registry._db,force_demo,status,update_module)
  File "/home/odoo/src/odoo/13.0/odoo/modules/loading.py",line 369,in load_modules
    registry.setup_models(cr)
  File "/home/odoo/src/odoo/13.0/odoo/modules/registry.py",line 290,in setup_models
    for path in transitive_dependencies(field):
  File "/home/odoo/src/odoo/13.0/odoo/modules/registry.py",line 276,in transitive_dependencies
    for seq2 in transitive_dependencies(seq1[-1],seen + [field]):
  File "/home/odoo/src/odoo/13.0/odoo/modules/registry.py",line 272,in transitive_dependencies
    for seq1 in dependencies[field]:
KeyError: x_crm.lead.activities.x_name