Traceback (most recent call last):
  File "/opt/odoo16/odoo/odoo/tools/convert.py", line 698, in _tag_root
    f(rec)
  File "/opt/odoo16/odoo/odoo/tools/convert.py", line 495, in _tag_record
    model = env[rec_model]
  File "/opt/odoo16/odoo/odoo/api.py", line 542, in __getitem__
    return self.registry[model_name](self, (), ())
  File "/opt/odoo16/odoo/odoo/modules/registry.py", line 190, in __getitem__
    return self.models[model_name]
KeyError: 'workflow' 

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

Traceback (most recent call last):
  File "/opt/odoo16/odoo/odoo/http.py", line 1589, in _serve_db
    return service_model.retrying(self._serve_ir_http, self.env)
  File "/opt/odoo16/odoo/odoo/service/model.py", line 133, in retrying
    result = func()
  File "/opt/odoo16/odoo/odoo/http.py", line 1616, in _serve_ir_http
    response = self.dispatcher.dispatch(rule.endpoint, args)
  File "/opt/odoo16/odoo/odoo/http.py", line 1820, in dispatch
    result = self.request.registry['ir.http']._dispatch(endpoint)
  File "/opt/odoo16/odoo/odoo/addons/base/models/ir_http.py", line 154, in _dispatch
    result = endpoint(**request.params)
  File "/opt/odoo16/odoo/odoo/http.py", line 697, in route_wrapper
    result = endpoint(self, *args, **params_ok)
  File "/opt/odoo16/odoo/addons/web/controllers/dataset.py", line 46, in call_button
    action = self._call_kw(model, method, args, kwargs)
  File "/opt/odoo16/odoo/addons/web/controllers/dataset.py", line 33, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/opt/odoo16/odoo/odoo/api.py", line 466, in call_kw
    result = _call_kw_multi(method, model, args, kwargs)
  File "/opt/odoo16/odoo/odoo/api.py", line 453, in _call_kw_multi
    result = method(recs, *args, **kwargs)
  File "", line 2, in button_immediate_upgrade
  File "/opt/odoo16/odoo/odoo/addons/base/models/ir_module.py", line 74, in check_and_log
    return method(self, *args, **kwargs)
  File "/opt/odoo16/odoo/odoo/addons/base/models/ir_module.py", line 659, in button_immediate_upgrade
    return self._button_immediate_function(type(self).button_upgrade)
  File "/opt/odoo16/odoo/odoo/addons/base/models/ir_module.py", line 592, in _button_immediate_function
    registry = modules.registry.Registry.new(self._cr.dbname, update_module=True)
  File "", line 2, in new
  File "/opt/odoo16/odoo/odoo/tools/func.py", line 87, in locked
    return func(inst, *args, **kwargs)
  File "/opt/odoo16/odoo/odoo/modules/registry.py", line 90, in new
    odoo.modules.load_modules(registry, force_demo, status, update_module)
  File "/opt/odoo16/odoo/odoo/modules/loading.py", line 486, in load_modules
    force, status, report, loaded_modules, update_module, models_to_check)
  File "/opt/odoo16/odoo/odoo/modules/loading.py", line 374, in load_marked_modules
    perform_checks=perform_checks, models_to_check=models_to_check
  File "/opt/odoo16/odoo/odoo/modules/loading.py", line 231, in load_module_graph
    load_data(cr, idref, mode, kind='data', package=package)
  File "/opt/odoo16/odoo/odoo/modules/loading.py", line 71, in load_data
    tools.convert_file(cr, package.name, filename, idref, mode, noupdate, kind)
  File "/opt/odoo16/odoo/odoo/tools/convert.py", line 763, in convert_file
    convert_xml_import(cr, module, fp, idref, mode, noupdate)
  File "/opt/odoo16/odoo/odoo/tools/convert.py", line 829, in convert_xml_import
    obj.parse(doc.getroot())
  File "/opt/odoo16/odoo/odoo/tools/convert.py", line 749, in parse
    self._tag_root(de)
  File "/opt/odoo16/odoo/odoo/tools/convert.py", line 698, in _tag_root
    f(rec)
  File "/opt/odoo16/odoo/odoo/tools/convert.py", line 715, in _tag_root
    )) from e
odoo.tools.convert.ParseError: while parsing /opt/odoo16/odoo/addons/gb_business_trip/data/business_trip_workflow.xml:4, somewhere inside

            business.trip
            
            True
        

The above server error caused the following client error:
RPC_ERROR: Odoo Server Error
    at makeErrorFromResponse (http://localhost:8000/web/assets/618-2540b0e/web.assets_backend.min.js:988:163)
    at XMLHttpRequest. (http://localhost:8000/web/assets/618-2540b0e/web.assets_backend.min.js:996:13)