creating a sales order and want to save the header record.

[Stephane Wirtel (OpenERP)]

Traceback (most recent call last):
  File "/mnt/openerp/server/bin/netsvc.py", line 244, in dispatch
    result = LocalService(service_name)(method, *params)
  File "/mnt/openerp/server/bin/netsvc.py", line 73, in __call__
    return getattr(self, method)(*params)
  File "/mnt/openerp/server/bin/addons/base_module_record/base_module_record.py", line 38, in execute
    res = super(recording_objects_proxy, self).execute(*args, **argv)
  File "/mnt/openerp/server/bin/addons/audittrail/audittrail.py", line 346, in execute
    res = my_fct(db, uid, passwd, object, method, *args)
  File "/mnt/openerp/server/bin/addons/audittrail/audittrail.py", line 331, in my_fct
    return fct_src(db, uid, passwd, object, method, *args)
  File "/mnt/openerp/server/bin/addons/use_control/services.py", line 72, in execute
    return super(recording_objects_proxy, self).execute(db, uid, passwd, object, method, *args)
  File "/mnt/openerp/server/bin/service/web_services.py", line 579, in execute
    res = service.execute(db, uid, object, method, *args)
  File "/mnt/openerp/server/bin/osv/osv.py", line 61, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/mnt/openerp/server/bin/osv/osv.py", line 120, in execute
    res = pool.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/mnt/openerp/server/bin/osv/osv.py", line 112, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/mnt/openerp/server/bin/addons/sale/sale.py", line 346, in create
    return super(sale_order, self).create(cr, uid, vals, context=context)
  File "/mnt/openerp/server/bin/osv/orm.py", line 2788, in create
    result += self._columns[field].set(cr, self, id_new, field, vals[field], user, rel_context) or []
  File "/mnt/openerp/server/bin/osv/fields.py", line 444, in set
    if act[0] == 0:
KeyError: 0

[Jay Vora (Serpent Consulting Services) (jayvora)]

Tell us how you met the error?
Thanks.