gistfile1.txt

Server Traceback (most recent call last):
  File "/home/openerp/openerp61/web/addons/web/common/http.py", line 593, in send
    return openerp.netsvc.dispatch_rpc(service_name, method, args)
  File "/home/openerp/openerp61/server/openerp/netsvc.py", line 360, in dispatch_rpc
    result = ExportService.getService(service_name).dispatch(method, params)
  File "/home/openerp/openerp61/server/openerp/service/web_services.py", line 586, in dispatch
    res = fn(db, uid, *params)
  File "/home/openerp/openerp61/server/openerp/osv/osv.py", line 186, in execute_kw
    return self.execute(db, uid, obj, method, *args, **kw or {})
  File "/home/openerp/openerp61/server/openerp/osv/osv.py", line 129, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/home/openerp/openerp61/server/openerp/osv/osv.py", line 195, in execute
    res = self.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/home/openerp/openerp61/server/openerp/osv/osv.py", line 183, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/home/openerp/openerp61/addons/account/account.py", line 1371, in onchange_line_id
    line_ids = self.resolve_o2m_commands_to_record_dicts(cr, uid, 'line_id', line_ids, context=context)
  File "/home/openerp/openerp61/server/openerp/osv/orm.py", line 4982, in resolve_o2m_commands_to_record_dicts
    cr, uid, ids_to_read, fields=fields, context=context))
  File "/home/openerp/openerp61/server/openerp/osv/orm.py", line 3416, in read
    result = self._read_flat(cr, user, select, fields, context, load)
  File "/home/openerp/openerp61/server/openerp/osv/orm.py", line 3542, in _read_flat
    record[f] = res2[record['id']]
KeyError: 477

How this error can be solved ?