installation error - AssertionError

[Thordan]

Still trying to get this connector installed I gave up on a windows based installation and run now of Ubuntu Server 12, Python 2.7 with new install of openERP 6.1.1. I get the following installation error:

AssertionError: Default function defined in prestashop.installer but field enable_prestashop does not exist !

Any help is greatly appreciated. Thank you.

Full error:

Client Traceback (most recent call last):
  File "/opt/openerp/server/openerp/addons/web/common/http.py", line 180, in dispatch
    response["result"] = method(controller, self, **self.params)
  File "/opt/openerp/server/openerp/addons/web/controllers/main.py", line 1004, in call_button
    action = self.call_common(req, model, method, args, domain_id, context_id)
  File "/opt/openerp/server/openerp/addons/web/controllers/main.py", line 948, in call_common
    return self._call_kw(req, model, method, args, {})
  File "/opt/openerp/server/openerp/addons/web/controllers/main.py", line 962, in _call_kw
    return getattr(req.session.model(model), method)(*args, **kwargs)
  File "/opt/openerp/server/openerp/addons/web/common/openerplib/main.py", line 250, in proxy
    args, kw)
  File "/opt/openerp/server/openerp/addons/web/common/openerplib/main.py", line 117, in proxy
    result = self.connector.send(self.service_name, method, *args)
  File "/opt/openerp/server/openerp/addons/web/common/http.py", line 611, in send
    raise fault

Server Traceback (most recent call last):
  File "/opt/openerp/server/openerp/addons/web/common/http.py", line 592, in send
    result = openerp.netsvc.dispatch_rpc(service_name, method, args)
  File "/opt/openerp/server/openerp/netsvc.py", line 360, in dispatch_rpc
    result = ExportService.getService(service_name).dispatch(method, params)
  File "/opt/openerp/server/openerp/service/web_services.py", line 572, in dispatch
    res = fn(db, uid, *params)
  File "/opt/openerp/server/openerp/osv/osv.py", line 167, in execute_kw
    return self.execute(db, uid, obj, method, *args, **kw or {})
  File "/opt/openerp/server/openerp/osv/osv.py", line 121, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/opt/openerp/server/openerp/osv/osv.py", line 176, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/opt/openerp/server/openerp/osv/osv.py", line 164, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/opt/openerp/server/openerp/addons/base/module/wizard/base_module_upgrade.py", line 101, in upgrade_module
    _db, pool = pooler.restart_pool(cr.dbname, update_module=True)
  File "/opt/openerp/server/openerp/pooler.py", line 39, in restart_pool
    registry = RegistryManager.new(db_name, force_demo, status, update_module, True)
  File "/opt/openerp/server/openerp/modules/registry.py", line 160, in new
    openerp.modules.load_modules(registry.db, force_demo, status, update_module)
  File "/opt/openerp/server/openerp/modules/loading.py", line 338, in load_modules
    processed = load_marked_modules(cr, graph, states_to_load, force, status, report, loaded_modules)
  File "/opt/openerp/server/openerp/modules/loading.py", line 253, in load_marked_modules
    loaded, processed = load_module_graph(cr, graph, progressdict, report=report, skip_modules=loaded_modules)
  File "/opt/openerp/server/openerp/modules/loading.py", line 167, in load_module_graph
    models = pool.load(cr, package)
  File "/opt/openerp/server/openerp/modules/registry.py", line 97, in load
    res.append(cls.create_instance(self, cr))
  File "/opt/openerp/server/openerp/osv/orm.py", line 919, in create_instance
    obj.__init__(pool, cr)
  File "/opt/openerp/server/openerp/osv/orm.py", line 1053, in __init__
    assert (k in self._columns) or (k in self._inherit_fields), 'Default function defined in %s but field %s does not exist !' % (self._name, k,)
AssertionError: Default function defined in prestashop.installer but field enable_prestashop does not exist !