Hello i want to add new menus and submenus under Invoicing.
I know i need an action for my menu and a view. I'm using Odoo11

This what i've got so far.

    <!-- menu categories -->
    <menuitem name="Localizaciones" id="localizaciones_menu_1" parent="menu_finance_receivables" sequence="6"/>
    <!-- sub-menu categories -->    
       <menuitem name="Enviadas" id="localizaciones_submenu_1" parent="localizaciones_menu_1" sequence="1" action="x_nc_act_inv_fac_env"/>
       <menuitem name="Pendientes" id="localizaciones_submenu_2" parent="localizaciones_menu_1" sequence="2" action="x_nc_act_inv_fac_pen"/>

            But i get the error

  File "/usr/lib/python3/dist-packages/odoo/addons/base/ir/ir_model.py", line 1318, in xmlid_lookup
    raise ValueError('External ID not found in the system: %s' % xmlid)
odoo.tools.convert.ParseError: "External ID not found in the system: mymodule.menu_finance_receivables" while parsing /usr/lib/python3/dist-packages/odoo/addons/mymodule/views/views.xml:292, near
<menuitem name="Localizaciones" id="localizaciones_menu_1" parent="menu_finance_receivables" sequence="6"/>

So i though the problem might be the inheritance from my module. But i already inherited account.invoice on my models.py and set my dependence like:

    'depends': ['base','account','sale'],

I don't know what am I missing. Thanks in advance.