I want to add Chatter on my hr,attendance. But when I inherit mail and hr.attendance it get error .Please help me

 py file 

_inherit = ['hr.attendance','mail.thread']

xml file

<record id="view_attendance_form_inherit" model="ir.ui.view">
        <field name="name">hr.attendance.form.inherit</field>
        <field name="model">hr.attendance</field>
        <field name="inherit_id" ref="hr_attendance.view_attendance_form"/>
        <field name="arch" type="xml">

            <xpath expr="//field[@name='name']" position="replace">
                <field name="check_day" />
                <field name="checkin" />
                <field name="checkout" />
            </xpath>
            <xpath expr="//field[@name='employee_id']" position="replace">
                <field name="employee_id" on_change="onchange_employee_id(employee_id)" string="Employee Name"/>
                 <field name="employee_code"  string="Employee Code"/>
            </xpath>

            <xpath expr="//field[@name='action_desc']" position="replace">
                <field name="department_id"/>
                <field name="job_id"/>
                <field name="late_sign_in"/>
                <field name="early_sign_out"/>
                <field name="all_day_leave"/>
                <field name="half_day_leave"/>
                <field name="edit" invisible="1"/>
                <field name="work_location_id" invisible="1"/>
            </xpath>
            <xpath expr="//field[@name='action']" position="replace">
            </xpath>
            <xpath expr="//form[@string='Employee attendances']/sheet" position="after">
               <div class="oe_chatter">
                    <field name="message_follower_ids" widget="mail_followers"/>
                    <field name="message_ids" widget="mail_thread"/>
                </div>
            </xpath>

        </field>
    </record>

error

Error context:

View `view_hr_attendance_filter`