This is the Error (
File "C:\Program Files (x86)\OpenERP 7.0-20140227-001259\Server\server.\openerp\modules\loading.py", line 76, in <lambda>
File "C:\Program Files (x86)\OpenERP 7.0-20140227-001259\Server\server.\openerp\modules\loading.py", line 124, in _load_data
File "C:\Program Files (x86)\OpenERP 7.0-20140227-001259\Server\server.\openerp\tools\convert.py", line 954, in convert_xml_import
File "C:\Program Files (x86)\OpenERP 7.0-20140227-001259\Server\server.\openerp\tools\convert.py", line 847, in parse
File "C:\Program Files (x86)\OpenERP 7.0-20140227-001259\Server\server.\openerp\tools\convert.py", line 805, in _tag_record
File "C:\Program Files (x86)\OpenERP 7.0-20140227-001259\Server\server.\openerp\tools\convert.py", line 824, in id_get
File "C:\Program Files (x86)\OpenERP 7.0-20140227-001259\Server\server.\openerp\tools\convert.py", line 833, in model_id_get
File "C:\Program Files (x86)\OpenERP 7.0-20140227-001259\Server\server.\openerp\tools\cache.py", line 18, in lookup File "C:\Program Files (x86)\OpenERP 7.0-20140227-001259\Server\server.\openerp\tools\cache.py", line 46, in lookup File "C:\Program Files (x86)\OpenERP 7.0-20140227-001259\Server\server\openerp\addons\base\ir\ir_model.py", line 874, in get_object_reference
File "C:\Program Files (x86)\OpenERP 7.0-20140227-001259\Server\server.\openerp\tools\cache.py", line 18, in lookup File "C:\Program Files (x86)\OpenERP 7.0-20140227-001259\Server\server.\openerp\tools\cache.py", line 46, in lookup File "C:\Program Files (x86)\OpenERP 7.0-20140227-001259\Server\server\openerp\addons\base\ir\ir_model.py", line 867, in _get_id ValueError: No such external ID currently defined in the system: sna.sna_aor_c1_form )

(My Configuration)

<openerp> <data>

<!-- ### Orphan START ### -->  
<!-- Orphan Form View -->   
<record model="ir.ui.view" id="sna_orphan_form">
    <field name="name">sna.orphan.form</field>
    <field name="model">sna.orphan</field>
    <field name="inherit_id" ref="sna.sna_aor_c1_form"/>
    <field name="type">form</field>
    <field name="arch" type="xml">
        <form string="Orphans" version="7.0">
            <field name="district_id" select="1"/>
            <field name="sub_district_id" select="2"/>
            <field name="area_id" select="3"/>
            <field name="address_id" select="5"/>
            <field name="officer_id" select="7"/>
            <field name="registration_date" select="9"/>
            <field name="chief" select="10"/>
            <field name="headman" select="11"/>
            <field name="court_president" select="12"/>
            <field name="councillor" select="13"/>
            <field name="vdc_chairman" select="14"/>
            <field name="placed_in_institution" select="15"/>
            <field name="date_placed" select="16"/>
            <field name="institute_id" select="17"/>
        </form>
    </field>
</record>
<!-- Orphan Tree View -->
<record model="ir.ui.view" id="sna_orphan_tree">
    <field name="name">sna.orphan.tree</field>
    <field name="model">sna.orphan</field>
    <field name="inherit_id" ref="sna.sna_aor_super_tree"/>
    <field name="arch" type="xml">
        <tree string="Orphan Setup" editable="bottom">
            <field name="district_id"/>
            <field name="sub_district_id"/>
            <field name="area_id"/>

            <field name="address_id"/>

            <field name="officer_id"/>

            <field name="registration_date"/>
            <field name="chief"/>
            <field name="headman"/>
            <field name="court_president"/>
            <field name="councillor"/>
            <field name="vdc_chairman"/>
            <field name="placed_in_institution"/>
            <field name="date_placed"/>
            <field name="institute_id"/>
        </tree>
    </field>
</record>   
<!-- Orphan Action -->
<record model='ir.actions.act_window' id='sna_orphan_act'>
    <field name="name">Orphan</field>
    <field name="res_model">sna.orphan</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">
        Click to create new Orphan.
      </p><p>
        a
      </p>
    </field>
</record>
<!-- Orphan Menu -->            
<menuitem action="sna_orphan_act" id="sna_orphan_menu" parent="sna_beneficiaries"/>
<!-- ### Orphan END ### -->

</data>

</openerp>