i create a function for field called v_neuf that's contain a value of this field (aquisition_date) bytheway v_neuf it's a compute field & when when i update the app fleet vehicule everythings work fine until i try to open the app i get this error message :
Odoo Server Error
Traceback (most recent call last):
File "/home/odoo/odoo/odoo/http.py", line 654, in _handle_exception
return super(JsonRequest, self)._handle_exception(exception)
File "/home/odoo/odoo/odoo/http.py", line 312, in _handle_exception
raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
File "/home/odoo/odoo/odoo/tools/pycompat.py", line 87, in reraise
raise value
File "/home/odoo/odoo/odoo/http.py", line 696, in dispatch
result = self._call_function(**self.params)
File "/home/odoo/odoo/odoo/http.py", line 344, in _call_function
return checked_call(self.db, *args, **kwargs)
File "/home/odoo/odoo/odoo/service/model.py", line 97, in wrapper
return f(dbname, *args, **kwargs)
File "/home/odoo/odoo/odoo/http.py", line 337, in checked_call
result = self.endpoint(*a, **kw)
File "/home/odoo/odoo/odoo/http.py", line 939, in __call__
return self.method(*args, **kw)
File "/home/odoo/odoo/odoo/http.py", line 517, in response_wrap
response = f(*args, **kw)
File "/home/odoo/odoo/addons/web/controllers/main.py", line 962, in call_kw
return self._call_kw(model, method, args, kwargs)
File "/home/odoo/odoo/addons/web/controllers/main.py", line 954, in _call_kw
return call_kw(request.env[model], method, args, kwargs)
File "/home/odoo/odoo/odoo/api.py", line 745, in call_kw
return _call_kw_model(method, model, args, kwargs)
File "/home/odoo/odoo/odoo/api.py", line 718, in _call_kw_model
result = method(recs, *args, **kwargs)
File "/home/odoo/odoo/odoo/models.py", line 2070, in read_group
result = self._read_group_raw(domain, fields, groupby, offset=offset, limit=limit, orderby=orderby, lazy=lazy)
File "/home/odoo/odoo/odoo/models.py", line 2206, in _read_group_raw
aggregated_fields, count_field, result, read_group_order=order,
File "/home/odoo/odoo/odoo/models.py", line 1727, in _read_group_fill_results
groups = getattr(self, field.group_expand)(groups, domain, order)
AttributeError: 'fleet.vehicle' object has no attribute '_read_group_stage_ids'