Error:
Odoo Server Error

Traceback (most recent call last):
  File "/data/build/odoo/odoo/addons/base/models/ir_http.py", line 229, in _dispatch
    result = request.dispatch()
  File "/data/build/odoo/odoo/http.py", line 681, in dispatch
    result = self._call_function(**self.params)
  File "/data/build/odoo/odoo/http.py", line 359, in _call_function
    return checked_call(self.db, *args, **kwargs)
  File "/data/build/odoo/odoo/service/model.py", line 93, in wrapper
    return f(dbname, *args, **kwargs)
  File "/data/build/odoo/odoo/http.py", line 347, in checked_call
    result = self.endpoint(*a, **kw)
  File "/data/build/odoo/odoo/http.py", line 925, in __call__
    return self.method(*args, **kw)
  File "/data/build/odoo/odoo/http.py", line 529, in response_wrap
    response = f(*args, **kw)
  File "/data/build/odoo/addons/web/controllers/main.py", line 1324, in call_button
    action = self._call_kw(model, method, args, kwargs)
  File "/data/build/odoo/addons/web/controllers/main.py", line 1312, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "/data/build/odoo/odoo/api.py", line 385, in call_kw
    result = _call_kw_multi(method, model, args, kwargs)
  File "/data/build/odoo/odoo/api.py", line 372, in _call_kw_multi
    result = method(recs, *args, **kwargs)
  File "<decorator-gen-71>", line 2, in button_immediate_install
  File "/data/build/odoo/odoo/addons/base/models/ir_module.py", line 72, in check_and_log
    return method(self, *args, **kwargs)
  File "/data/build/odoo/odoo/addons/base/models/ir_module.py", line 468, in button_immediate_install
    return self._button_immediate_function(type(self).button_install)
  File "/data/build/odoo/odoo/addons/base/models/ir_module.py", line 578, in _button_immediate_function
    modules.registry.Registry.new(self._cr.dbname, update_module=True)
  File "/data/build/odoo/odoo/modules/registry.py", line 89, in new
    odoo.modules.load_modules(registry._db, force_demo, status, update_module)
  File "/data/build/odoo/odoo/modules/loading.py", line 440, in load_modules
    loaded_modules, update_module, models_to_check)
  File "/data/build/odoo/odoo/modules/loading.py", line 333, in load_marked_modules
    perform_checks=perform_checks, models_to_check=models_to_check
  File "/data/build/odoo/odoo/modules/loading.py", line 233, in load_module_graph
    load_data(cr, idref, mode, kind='data', package=package, report=report)
  File "/data/build/odoo/odoo/modules/loading.py", line 68, in load_data
    tools.convert_file(cr, package.name, filename, idref, mode, noupdate, kind, report)
  File "/data/build/odoo/odoo/tools/convert.py", line 726, in convert_file
    convert_xml_import(cr, module, fp, idref, mode, noupdate, report)
  File "/data/build/odoo/odoo/tools/convert.py", line 792, in convert_xml_import
    obj.parse(doc.getroot())
  File "/data/build/odoo/odoo/tools/convert.py", line 712, in parse
    self._tag_root(de)
  File "/data/build/odoo/odoo/tools/convert.py", line 667, in _tag_root
    f(rec)
  File "/data/build/odoo/odoo/tools/convert.py", line 674, in _tag_root
    etree.tostring(rec, encoding='unicode').rstrip()
Exception

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

Traceback (most recent call last):
  File "/data/build/odoo/odoo/http.py", line 637, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/data/build/odoo/odoo/http.py", line 318, in _handle_exception
    raise exception.with_traceback(None) from new_cause
odoo.tools.convert.ParseError: while parsing /data/build/odoo/addons/mail/views/res_users_views.xml:20, near
<record id="view_users_form_mail" model="ir.ui.view">
            <field name="name">res.users.form.mail</field>
            <field name="model">res.users</field>
            <field name="inherit_id" ref="base.view_users_form"/>
            <field name="arch" type="xml">
                <data>
                    <field name="signature" position="before">
                        <field name="notification_type" widget="radio"/>
                    </field>
                    <field name="signature" position="before">
                        <field name="alias_id"/>
                        <field name="alias_contact" attrs="{'invisible': [('alias_id', '=', False)]}"/>
                    </field>
                </data>
            </field>
        </record>