ARGOMENTO: Problema nell'installazione dei moduli

Environment Information : 
System : Linux-2.6.31-19-generic-i686-with-Ubuntu-9.10-karmic
OS Name : posix
Distributor ID:	Ubuntu
Description:	Ubuntu 9.10
Release:	9.10
Codename:	karmic
Operating System Release : 2.6.31-19-generic
Operating System Version : #56-Ubuntu SMP Thu Jan 28 01:26:53 UTC 2010
Operating System Architecture : 32bit
Operating System Locale : it_IT.UTF8
Python Version : 2.6.4
OpenERP-Client Version : 5.0.7
Last revision No. & ID :Bazaar Package not Found !Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/openerp-server/netsvc.py", line 244, in dispatch
    result = LocalService(service_name)(method, *params)
  File "/usr/lib/python2.6/site-packages/openerp-server/netsvc.py", line 73, in __call__
    return getattr(self, method)(*params)
  File "/usr/lib/python2.6/site-packages/openerp-server/service/web_services.py", line 632, in execute
    return self._execute(db, uid, wiz_id, datas, action, context)
  File "/usr/lib/python2.6/site-packages/openerp-server/service/web_services.py", line 612, in _execute
    return wiz.execute(db, uid, self.wiz_datas[wiz_id], action, context)
  File "/usr/lib/python2.6/site-packages/openerp-server/wizard/__init__.py", line 178, in execute
    res = self.execute_cr(cr, uid, data, state, context)
  File "/usr/lib/python2.6/site-packages/openerp-server/wizard/__init__.py", line 73, in execute_cr
    action_res = action(self, cr, uid, data, context)
  File "/usr/lib/python2.6/site-packages/openerp-server/addons/base/module/wizard/wizard_module_upgrade.py", line 92, in _upgrade_module
    db, pool = pooler.restart_pool(cr.dbname, update_module=True)
  File "/usr/lib/python2.6/site-packages/openerp-server/pooler.py", line 62, in restart_pool
    return get_db_and_pool(db_name, force_demo, status, update_module=update_module)
  File "/usr/lib/python2.6/site-packages/openerp-server/pooler.py", line 40, in get_db_and_pool
    addons.load_modules(db, force_demo, status, update_module)
  File "/usr/lib/python2.6/site-packages/openerp-server/addons/__init__.py", line 740, in load_modules
    r = load_module_graph(cr, graph, status, report=report)
  File "/usr/lib/python2.6/site-packages/openerp-server/addons/__init__.py", line 642, in load_module_graph
    tools.convert_xml_import(cr, m, fp, idref, mode=mode, noupdate=True, **kwargs)
  File "/usr/lib/python2.6/site-packages/openerp-server/tools/convert.py", line 873, in convert_xml_import
    obj.parse(doc.getroot())
  File "/usr/lib/python2.6/site-packages/openerp-server/tools/convert.py", line 770, in parse
    self._tags[rec.tag](self.cr, rec, n)
  File "/usr/lib/python2.6/site-packages/openerp-server/tools/convert.py", line 742, in _tag_record
    id = self.pool.get('ir.model.data')._update(cr, self.uid, rec_model, self.module, res, rec_id or False, not self.isnoupdate(data_node), noupdate=self.isnoupdate(data_node), mode=self.mode )
  File "/usr/lib/python2.6/site-packages/openerp-server/addons/base/ir/ir_model.py", line 515, in _update
    res_id = model_obj.create(cr, uid, values, context=context)
  File "/usr/lib/python2.6/site-packages/openerp-server/osv/orm.py", line 2819, in create
    cr.execute('insert into "'+self._table+'" (id'+upd0+") values ("+str(id_new)+upd1+')', tuple(upd2))
  File "/usr/lib/python2.6/site-packages/openerp-server/sql_db.py", line 77, in wrapper
    return f(self, *args, **kwargs)
  File "/usr/lib/python2.6/site-packages/openerp-server/sql_db.py", line 122, in execute
    res = self._obj.execute(query, params)
IntegrityError: null value in column "name" violates not-null constraint