Try to reinstall a set of custom Odoo 13 modules on a new Ubuntu-based virtual machine. For one of the modules (material_purchase_requisitions), I keep encountering the following server error at the point of installation (Error message shortened to only the most relevant part):

Odoo Server Error

Traceback (most recent call last):
  File "/home/odoo13/odoo/odoo/tools/cache.py", line 85, in lookup
    r = d[key]
  File "/home/odoo13/odoo/odoo/tools/func.py", line 69, in wrapper
    return func(self, *args, **kwargs)
  File "/home/odoo13/odoo/odoo/tools/lru.py", line 44, in __getitem__
    a = self.d[obj].me
KeyError: ('ir.model.data', <function IrModelData.xmlid_lookup at 0x7f476ef59e50>, 'material_purchase_requisitions.inventory_keeper_manager_role')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/odoo13/odoo/odoo/tools/convert.py", line 712, in parse
    self._tag_root(de)
  File "/home/odoo13/odoo/odoo/tools/convert.py", line 674, in _tag_root
    f(rec)
  File "/home/odoo13/odoo/odoo/tools/convert.py", line 674, in _tag_root
    f(rec)
  File "/home/odoo13/odoo/odoo/tools/convert.py", line 472, in _tag_menuitem
    group_id = self.id_get(group)
  File "/home/odoo13/odoo/odoo/tools/convert.py", line 657, in id_get
    res = self.model_id_get(id_str, raise_if_not_found)
  File "/home/odoo13/odoo/odoo/tools/convert.py", line 663, in model_id_get
    return self.env['ir.model.data'].xmlid_to_res_model_res_id(id_str, raise_if_not_found=raise_if_not_found)
  File "/home/odoo13/odoo/odoo/addons/base/models/ir_model.py", line 1697, in xmlid_to_res_model_res_id
    return self.xmlid_lookup(xmlid)[1:3]
  File "<decorator-gen-24>", line 2, in xmlid_lookup
  File "/home/odoo13/odoo/odoo/tools/cache.py", line 90, in lookup
    value = d[key] = self.method(*args, **kwargs)
  File "/home/odoo13/odoo/odoo/addons/base/models/ir_model.py", line 1686, in xmlid_lookup
    raise ValueError('External ID not found in the system: %s' % xmlid)
ValueError: External ID not found in the system: material_purchase_requisitions.inventory_keeper_manager_role

The indicated missing/unidentified key (inventory_keeper_manager_role) is located within the module’s security.xml file, and is used for the purposes of creating custom user groups for access rights:

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data noupdate="0">

        <record model="ir.module.category" id="purchase_requisition_role">
            <field name="name">Material Purchase Requisition</field>
        </record>

        <record id="group_purchase_requisition_user" model="res.groups">
            <field name="name">Material Purchase Requisition User</field>
            <field name="implied_ids" eval="[(4, ref('stock.group_stock_user'))]"/>
            <field name="category_id" ref="purchase_requisition_role"/>
        </record>
        
        <record id="group_all_administrator" model="res.groups">
            <field name="name">Administrator </field>
             <field name="implied_ids" eval="[
             (4, ref('base.group_user')),
             (4, ref('material_purchase_requisitions.group_purchase_requisition_department')),
             (4, ref('material_purchase_requisitions.inventory_keeper_manager_role')),
             (4, ref('material_purchase_requisitions.purchase_officer_role')),
             ]"/>
            <field name="category_id" ref="purchase_requisition_role"/>
            <field name="users" eval="[(4, ref('base.user_root')), (4, ref('base.user_admin'))]"/>
        </record>

        <record id="group_purchase_requisition_department" model="res.groups">
            <field name="name">Material Purchase Requisition Department Manager</field>
            <field name="implied_ids" eval="[(4, ref('base.group_user'))]"/>
            <field name="category_id" ref="purchase_requisition_role"/>
        </record>

         <record id="inventory_keeper_role" model="res.groups">
             <field name="name">Inventory Keeper</field>
             <field name="implied_ids" eval="[(4, ref('base.group_user'))]"/>
             <field name="category_id" ref="purchase_requisition_role"/>
        </record>

        <record id="inventory_keeper_manager_role" model="res.groups">
             <field name="name">Inventory Manager</field>
             <field name="implied_ids" eval="[(4, ref('material_purchase_requisitions.inventory_keeper_role'))]"/>
             <field name="category_id" ref="purchase_requisition_role"/>
        </record>

        <record id="purchase_officer_role" model="res.groups">
             <field name="name">Purchase Officer</field>
             <field name="implied_ids" eval="[(4, ref('base.group_user'))]"/>
             <field name="category_id" ref="purchase_requisition_role"/>
        </record>
        
        <record id="purchase_requisition_own_rule" model="ir.rule">
            <field name="name">Employee Material Purchase Requistion Own</field>
            <field name="model_id" ref="model_material_purchase_requisition"/>
            <field name="domain_force">[('employee_id.user_id','=',user.id)]</field>
            <field name="groups" eval="[(4, ref('base.group_user'))]"/>
        </record>

        <record id="purchase_requisition_line_department_manager_rule" model="ir.rule">
            <field name="name">Department Manager Material Purchase Requistion</field>
            <field name="model_id" ref="model_material_purchase_requisition"/>
            <field name="domain_force">[('employee_id.department_id.manager_id.user_id','=',user.id)]</field>
            <field name="groups" eval="[(4, ref('material_purchase_requisitions.group_purchase_requisition_department'))]"/>
        </record>

        <record id="purchase_requisition_all_rule" model="ir.rule">
            <field name="name">Material Purcahse Requisitions All</field>
            <field name="model_id" ref="model_material_purchase_requisition"/>
            <field name="domain_force">[(1,'=',1)]</field>
            <field name="groups" eval="[(4, ref('material_purchase_requisitions.group_all_administrator')),
                                        (4, ref('material_purchase_requisitions.inventory_keeper_role')),
                                        (4, ref('material_purchase_requisitions.purchase_officer_role'))]"/>
        </record>

        <record id="purchase_requisition_line_all_rule" model="ir.rule">
            <field name="name">Material Purcahse Requisitions Line All</field>
            <field name="model_id" ref="model_material_purchase_requisition_line"/>
            <field name="domain_force">[(1,'=',1)]</field>
            <field name="groups" eval="[(4, ref('material_purchase_requisitions.group_all_administrator')),
                                        (4, ref('material_purchase_requisitions.inventory_keeper_role')),
                                        (4, ref('material_purchase_requisitions.purchase_officer_role'))]"/>
        </record>
    </data>
</odoo>

Given that I can accurately trace the key location and its implementation within the code, and as far I can tell there are no syntax errors. Files are also being called in a correct order within the module’s manifest file. Therefore, what is causing the KeyError to manifest?