Hi,

I recently installed odoo 12 on centos 7.1(Python 3.1). After a while, i noticed i got errors during installation of Inventory apps. 

Could someone please point out the cause of this error, Thanks!

Error:

Odoo Server Error

Traceback (most recent call last):

  File "/opt/odoo12/odoo/odoo/tools/convert.py", line 757, in parse

    self._tags[rec.tag](rec, de, mode=mode)

  File "/opt/odoo12/odoo/odoo/tools/convert.py", line 612, in _tag_record

    raise Exception("Cannot update missing record %r" % xid)

Exception: Cannot update missing record 'base.default_user'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

  File "/opt/odoo12/odoo/odoo/http.py", line 654, in _handle_exception

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

  File "/opt/odoo12/odoo/odoo/http.py", line 312, in _handle_exception

    raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])

  File "/opt/odoo12/odoo/odoo/tools/pycompat.py", line 87, in reraise

    raise value

  File "/opt/odoo12/odoo/odoo/http.py", line 696, in dispatch

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

  File "/opt/odoo12/odoo/odoo/http.py", line 344, in _call_function

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

  File "/opt/odoo12/odoo/odoo/service/model.py", line 97, in wrapper

    return f(dbname, *args, **kwargs)

  File "/opt/odoo12/odoo/odoo/http.py", line 337, in checked_call

    result = self.endpoint(*a, **kw)

  File "/opt/odoo12/odoo/odoo/http.py", line 939, in __call__

    return self.method(*args, **kw)

  File "/opt/odoo12/odoo/odoo/http.py", line 517, in response_wrap

    response = f(*args, **kw)

  File "/opt/odoo12/odoo/addons/web/controllers/main.py", line 966, in call_button

    action = self._call_kw(model, method, args, {})

  File "/opt/odoo12/odoo/addons/web/controllers/main.py", line 954, in _call_kw

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

  File "/opt/odoo12/odoo/odoo/api.py", line 749, in call_kw

    return _call_kw_multi(method, model, args, kwargs)

  File "/opt/odoo12/odoo/odoo/api.py", line 736, in _call_kw_multi

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

  File "<decorator-gen-61>", line 2, in button_immediate_install

  File "/opt/odoo12/odoo/odoo/addons/base/models/ir_module.py", line 71, in check_and_log

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

  File "/opt/odoo12/odoo/odoo/addons/base/models/ir_module.py", line 442, in button_immediate_install

    return self._button_immediate_function(type(self).button_install)

  File "/opt/odoo12/odoo/odoo/addons/base/models/ir_module.py", line 535, in _button_immediate_function

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

  File "/opt/odoo12/odoo/odoo/modules/registry.py", line 86, in new

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

  File "/opt/odoo12/odoo/odoo/modules/loading.py", line 421, in load_modules

    loaded_modules, update_module, models_to_check)

  File "/opt/odoo12/odoo/odoo/modules/loading.py", line 313, in load_marked_modules

    perform_checks=perform_checks, models_to_check=models_to_check

  File "/opt/odoo12/odoo/odoo/modules/loading.py", line 222, in load_module_graph

    load_data(cr, idref, mode, kind='data', package=package, report=report)

  File "/opt/odoo12/odoo/odoo/modules/loading.py", line 68, in load_data

    tools.convert_file(cr, package.name, filename, idref, mode, noupdate, kind, report)

  File "/opt/odoo12/odoo/odoo/tools/convert.py", line 801, in convert_file

    convert_xml_import(cr, module, fp, idref, mode, noupdate, report)

  File "/opt/odoo12/odoo/odoo/tools/convert.py", line 864, in convert_xml_import

    obj.parse(doc.getroot(), mode=mode)

  File "/opt/odoo12/odoo/odoo/tools/convert.py", line 754, in parse

    self.parse(rec, mode)

  File "/opt/odoo12/odoo/odoo/tools/convert.py", line 763, in parse

    exc_info[2]

  File "/opt/odoo12/odoo/odoo/tools/pycompat.py", line 86, in reraise

    raise value.with_traceback(tb)

  File "/opt/odoo12/odoo/odoo/tools/convert.py", line 757, in parse

    self._tags[rec.tag](rec, de, mode=mode)

  File "/opt/odoo12/odoo/odoo/tools/convert.py", line 612, in _tag_record

    raise Exception("Cannot update missing record %r" % xid)

odoo.tools.convert.ParseError: "Cannot update missing record 'base.default_user'" while parsing /opt/odoo12/odoo/addons/stock/security/stock_security.xml:58, near

<record id="base.default_user" model="res.users">

        <field name="groups_id" eval="[(4,ref('stock.group_stock_manager'))]"/>

    </record>