Errror doing attendance report with a app: Employee Attendance Xlsx Report


Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/odoo/tools/cache.py", line 85, in lookup
    r = d[key]
  File "", line 2, in __getitem__
  File "/usr/lib/python3/dist-packages/odoo/tools/func.py", line 87, in locked
    return func(inst, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/odoo/tools/lru.py", line 34, in __getitem__
    a = self.d[obj]
KeyError: ('ir.model.data', , 'undefined')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/odoo/addons/report_xlsx/controllers/main.py", line 76, in report_download
    response = self.report_routes(
  File "/usr/lib/python3/dist-packages/odoo/http.py", line 699, in route_wrapper
    result = endpoint(self, *args, **params_ok)
  File "/usr/lib/python3/dist-packages/odoo/addons/report_xlsx/controllers/main.py", line 37, in report_routes
    xlsx = report.with_context(**context)._render_xlsx(
  File "/usr/lib/python3/dist-packages/odoo/addons/report_xlsx/models/ir_report.py", line 16, in _render_xlsx
    report_sudo = self._get_report(report_ref)
  File "/usr/lib/python3/dist-packages/odoo/addons/base/models/ir_actions_report.py", line 513, in _get_report
    report = self.env.ref(report_ref)
  File "/usr/lib/python3/dist-packages/odoo/api.py", line 582, in ref
    res_model, res_id = self['ir.model.data']._xmlid_to_res_model_res_id(
  File "/usr/lib/python3/dist-packages/odoo/addons/base/models/ir_model.py", line 2002, in _xmlid_to_res_model_res_id
    return self._xmlid_lookup(xmlid)[1:3]
  File "", line 2, in _xmlid_lookup
  File "/usr/lib/python3/dist-packages/odoo/tools/cache.py", line 90, in lookup
    value = d[key] = self.method(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/odoo/addons/base/models/ir_model.py", line 1990, in _xmlid_lookup
    module, name = xmlid.split('.', 1)
ValueError: not enough values to unpack (expected 2, got 1)

The above server error caused the following client error:
RPC_ERROR: Odoo Server Error
    at makeErrorFromResponse (http://jesus.openerp.es/web/assets/484-6df7317/web.assets_backend.min.js:968:163)
    at decoder.onload (http://jesus.openerp.es/web/assets/484-6df7317/web.assets_backend.min.js:956:7)