Hello , i want install my costume module, but i got this erreur, any help please ?

ParseError: "Invalid model name u'scheduler.demo' in action definition.
None" while parsing file:///C:/Program Files (x86)/Odoo 10.0/server/odoo/addons/scheduler_demo/views/scheduler_view.xml:9, near
<record model="ir.actions.act_window" id="default_scheduler_list_action">
            <field name="name">Scheduler data</field>
            <field name="res_model">scheduler.demo</field>
            <field name="view_type">form</field>
            <field name="view_mode">tree,form</field>
            <field name="help" type="html">
                <p class="oe_view_nocontent_create">Create the first record
                </p>
            </field>
        </record>