class LotExpiration(models.TransientModel):
    _name = 'lot.expiration'
    _description = 'Lot/Serial Expiration Report'

    location_ids = fields.Many2many(
        'stock.location',
        string='Location',
        help='Leave empty to include all locations'
    )
    exclude_sublocations = fields.Boolean(
        string='Exclude Sub-Locations',
        default=False,
        help='If checked, only main locations will be included (sub-locations will be excluded)'
    )
    report_file = fields.Binary(string='Report File', readonly=True)
    report_filename = fields.Char(string='Filename', readonly=True),error cumming from this part i think, error is 

odoo.tools.convert.ParseError: while parsing /home/project18/src/custom/ckc_lot_expiration_report/wizard/lot_expiration_views.xml:3
Error while validating view near:

                    <group>
                        <field name="location_ids" widget="many2many_tags" placeholder="Select Locations" options="{'no_create': True}"/>
                         <field name="exclude_sublocations" invisible="location_ids"/>
                    </group>
                    <group>

Field "exclude_sublocations" does not exist in model "lot.expiration"

View error context:
{'file': '/home/project18/src/custom/ckc_lot_expiration_report/wizard/lot_expiration_views.xml',
 'line': 6,
 'name': 'lot.expiration.view.form',
 'view': ir.ui.view(1947,),
 'view.model': 'lot.expiration',
 'view.parent': ir.ui.view(),
 'xmlid': 'lot_expiration_view_form'}