Error:

Hi I get this error, how can I fix this? 

 I am facing the below error while upgrading the module

Odoo Server Error



Traceback (most recent call last):

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\addons\base\models\ir_http.py", line 237, in _dispatch

result = request.dispatch()

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\http.py", line 683, in dispatch

result = self._call_function(**self.params)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\http.py", line 359, in _call_function

return checked_call(self.db, *args, **kwargs)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\service\model.py", line 94, in wrapper

return f(dbname, *args, **kwargs)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\http.py", line 347, in checked_call

result = self.endpoint(*a, **kw)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\http.py", line 912, in __call__

return self.method(*args, **kw)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\http.py", line 531, in response_wrap

response = f(*args, **kw)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\addons\web\controllers\main.py", line 1381, in call_button

action = self._call_kw(model, method, args, kwargs)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\addons\web\controllers\main.py", line 1369, in _call_kw

return call_kw(request.env[model], method, args, kwargs)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\api.py", line 396, in call_kw

result = _call_kw_multi(method, model, args, kwargs)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\api.py", line 383, in _call_kw_multi

result = method(recs, *args, **kwargs)

File "", line 2, in button_immediate_upgrade

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\addons\base\models\ir_module.py", line 73, in check_and_log

return method(self, *args, **kwargs)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\addons\base\models\ir_module.py", line 653, in button_immediate_upgrade

return self._button_immediate_function(type(self).button_upgrade)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\addons\base\models\ir_module.py", line 592, in _button_immediate_function

modules.registry.Registry.new(self._cr.dbname, update_module=True)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\modules\registry.py", line 89, in new

odoo.modules.load_modules(registry._db, force_demo, status, update_module)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\modules\loading.py", line 497, in load_modules

env['ir.model.data']._process_end(processed_modules)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\addons\base\models\ir_model.py", line 2237, in _process_end

record.unlink()

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\addons\base\models\ir_model.py", line 1357, in unlink

self._process_ondelete()

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\addons\base\models\ir_model.py", line 1382, in _process_ondelete

ondelete = (field.ondelete or {}).get(selection.value) or 'set null'

Exception



The above exception was the direct cause of the following exception:



Traceback (most recent call last):

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\http.py", line 639, in _handle_exception

return super(JsonRequest, self)._handle_exception(exception)

File "C:\Program Files\Odoo 14.0.20201228\server\odoo\http.py", line 315, in _handle_exception

raise exception.with_traceback(None) from new_cause

AttributeError: 'str' object has no attribute 'get'