[Python] Odoo 18: 'extra data' error when trying to install custom module

RPC_ERROR Odoo Server Error Occured on localhost:8069 on model ir.module.module and id 12 on 2025-04-21 08:48:10 GMT Traceback (most recent call last): File "C:\Program Files\Odoo 18.0.20250330\server\odoo\http.py", line 1962, in _transactioning return service_model.retrying(func, env=self.env) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\service\model.py", line 156, in retrying result = func() ^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\http.py", line 1929, in _serve_ir_http response = self.dispatcher.dispatch(rule.endpoint, args) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\http.py", line 2177, in dispatch result = self.request.registry['ir.http']._dispatch(endpoint) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\addons\base\models\ir_http.py", line 333, in _dispatch result = endpoint(**request.params) ^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\http.py", line 727, in route_wrapper result = endpoint(self, *args, **params_ok) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\addons\web\controllers\dataset.py", line 42, in call_button action = call_kw(request.env[model], method, args, kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\api.py", line 533, in call_kw result = getattr(recs, name)(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\python\Lib\site-packages\decorator.py", line 232, in fun return caller(func, *(extras + args), **kw) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\addons\base\models\ir_module.py", line 75, in check_and_log return method(self, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\addons\base\models\ir_module.py", line 480, in button_immediate_install return self._button_immediate_function(self.env.registry[self._name].button_install) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\addons\base\models\ir_module.py", line 604, in _button_immediate_function registry = modules.registry.Registry.new(self.cr.dbname, update_module=True) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\python\Lib\site-packages\decorator.py", line 232, in fun return caller(func, *(extras + args), **kw) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\tools\func.py", line 97, in locked return func(inst, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\modules\registry.py", line 127, in new odoo.modules.load_modules(registry, force_demo, status, update_module) File "C:\Program Files\Odoo 18.0.20250330\server\odoo\modules\loading.py", line 481, in load_modules processed_modules += load_marked_modules(env, graph, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\modules\loading.py", line 365, in load_marked_modules loaded, processed = load_module_graph( ^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Odoo 18.0.20250330\server\odoo\modules\loading.py", line 228, in load_module_graph load_data(env, idref, mode, kind='data', package=package) File "C:\Program Files\Odoo 18.0.20250330\server\odoo\modules\loading.py", line 72, in load_data tools.convert_file(env, package.name, filename, idref, mode, noupdate, kind) File "C:\Program Files\Odoo 18.0.20250330\server\odoo\tools\convert.py", line 608, in convert_file convert_xml_import(env, module, fp, idref, mode, noupdate) File "C:\Program Files\Odoo 18.0.20250330\server\odoo\tools\convert.py", line 662, in convert_xml_import relaxng.assert(doc) File "src\lxml\etree.pyx", line 3682, in lxml.etree.Validator.assert AssertionError: Element odoo has extra content: data, line 3

<?xml version="1.0" encoding="utf-8"?>
<odoo>
<data>
<record id="library_config_settings_view_form" model="ir.ui.view">
<field name="name">library.config.settings.form</field>
<field name="model">res.config.settings</field>
<field name="inherit_id" ref="base_setup.res_config_settings_view_form"/>
<field name="priority" eval="16"/>
<field name="arch" type="xml">
<xpath expr="//form" position="inside">
<div class="app_settings_block"
string="Library Settings"
data-module="library_management"
groups="library_management.group_library_admin">
<h2>API Configuration</h2>
<div class="row mt16 o_settings_container">
<div class="col-12 col-md-6 o_setting_box">
<div class="o_setting_left_pane">
<field name="isbn_api_key"/>
</div>
<div class="o_setting_right_pane text-muted">
<div class="content-group">
<div class="mt16">
Enter the API key for fetching book details via ISBN.
</div>
</div>
</div>
</div>
</div>
</div>
</xpath>
</field>
</record>
</data>
</odoo>

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