Error:
Odoo Server Error

Traceback (most recent call last):
  File "/home/odoo/src/odoo/odoo/addons/base/models/ir_http.py", line 237, in _dispatch
    result = request.dispatch()
  File "/home/odoo/src/odoo/odoo/http.py", line 683, in dispatch
    result = self._call_function(**self.params)
  File "/home/odoo/src/odoo/odoo/http.py", line 359, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/home/odoo/src/odoo/odoo/service/model.py", line 94, in wrapper
    return f(dbname, *args, **kwargs)
  File "/home/odoo/src/odoo/odoo/http.py", line 347, in checked_call
    result = self.endpoint(*a, **kw)
  File "/home/odoo/src/odoo/odoo/http.py", line 912, in __call__
    return self.method(*args, **kw)
  File "/home/odoo/src/odoo/odoo/http.py", line 531, in response_wrap
    response = f(*args, **kw)
  File "/home/odoo/src/odoo/addons/web/controllers/main.py", line 1377, in call_kw
    return self._call_kw(model, method, args, kwargs)
  File "/home/odoo/src/odoo/addons/web/controllers/main.py", line 1369, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/home/odoo/src/odoo/odoo/api.py", line 392, in call_kw
    result = _call_kw_model(method, model, args, kwargs)
  File "/home/odoo/src/odoo/odoo/api.py", line 365, in _call_kw_model
    result = method(recs, *args, **kwargs)
  File "/home/odoo/src/odoo/odoo/models.py", line 1523, in load_views
    result['fields_views'] = {
  File "/home/odoo/src/odoo/odoo/models.py", line 1524, in <dictcomp>
    v_type: self.fields_view_get(v_id, v_type if v_type != 'list' else 'tree',
  File "/home/odoo/src/odoo/addons/web/models/models.py", line 220, in fields_view_get
    r = super().fields_view_get(view_id, view_type, toolbar, submenu)
  File "/home/odoo/src/odoo/odoo/models.py", line 1614, in fields_view_get
    xarch, xfields = view.postprocess_and_fields(etree.fromstring(result['arch']), model=self._name)
  File "/home/odoo/src/odoo/odoo/addons/base/models/ir_ui_view.py", line 851, in postprocess_and_fields
    arch, name_manager = self._postprocess_view(node, model, validate=validate)
  File "/home/odoo/src/odoo/odoo/addons/base/models/ir_ui_view.py", line 860, in _postprocess_view
    self._postprocess_on_change(model, node)
  File "/home/odoo/src/odoo/odoo/addons/base/models/ir_ui_view.py", line 895, in _postprocess_on_change
    if model._has_onchange(field, field_nodes):
  File "/home/odoo/src/odoo/odoo/models.py", line 5927, in _has_onchange
    dep in other_fields for dep in self._dependent_fields(field)
  File "/home/odoo/src/odoo/odoo/models.py", line 5920, in _dependent_fields
    return traverse(self.pool.field_triggers.get(field, {}))
  File "/home/odoo/src/odoo/odoo/tools/func.py", line 26, in __get__
    value = self.fget(obj)
  File "/home/odoo/src/odoo/odoo/modules/registry.py", line 315, in field_triggers
    dependencies[field] = set(field.resolve_depends(self))
  File "/home/odoo/src/odoo/odoo/fields.py", line 621, in resolve_depends
    for dotnames in self.depends:
Exception

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

Traceback (most recent call last):
  File "/home/odoo/src/odoo/odoo/http.py", line 639, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/home/odoo/src/odoo/odoo/http.py", line 315, in _handle_exception
    raise exception.with_traceback(None) from new_cause
AttributeError: 'Char' object has no attribute 'depends'