Estoy tratando de instalar la localización argentina para odoo 9 desde github. Todo va bien y arranca odoo sin problemas. Pero cuando trato de instalar l10n_ar_partner da el siguiente error. No encuentro la causa, inclusive instalé openupgradelib. Alguna idea? Gracias!

2017-07-24 05:49:04,417 26 ERROR PRUEBA openerp.modules.registry: Failed to load registry

Traceback (most recent call last):

  File "/usr/lib/python2.7/dist-packages/openerp/modules/registry.py", line 386, in new

    openerp.modules.load_modules(registry._db, force_demo, status, update_module)

  File "/usr/lib/python2.7/dist-packages/openerp/modules/loading.py", line 340, in load_modules

    loaded_modules, update_module)

  File "/usr/lib/python2.7/dist-packages/openerp/modules/loading.py", line 239, in load_marked_modules

    loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules, perform_checks=perform_checks)

  File "/usr/lib/python2.7/dist-packages/openerp/modules/loading.py", line 130, in load_module_graph

    getattr(py_module, pre_init)(cr)

  File "/opt/odoo/argentina/l10n_ar_partner/hooks.py", line 23, in pre_init_hook

    openupgrade.column_exists(

AttributeError: 'NoneType' object has no attribute 'column_exists'

2017-07-24 05:49:04,418 26 ERROR PRUEBA openerp.http: Exception during JSON request handling.