error when consume and produce

showing error when click on confrm after selectiong consume and produce

  File "/home/orchid/OpenERP/v7/addons/mrp/mrp.py", line 818, in action_produce
    wf_service.trg_validate(uid, 'mrp.production', production_id, 'button_produce_done', cr)
  File "/home/orchid/OpenERP/v7/server/openerp/workflow/wkf_service.py", line 119, in trg_validate
    res2 = instance.validate(cr, id, ident, signal)
  File "/home/orchid/OpenERP/v7/server/openerp/workflow/instance.py", line 43, in validate
    workitem.process(cr, witem, ident, signal, force_running, stack=stack)
  File "/home/orchid/OpenERP/v7/server/openerp/workflow/workitem.py", line 60, in process
    ok = _split_test(cr, workitem, activity['split_mode'], ident, signal, stack)
  File "/home/orchid/OpenERP/v7/server/openerp/workflow/workitem.py", line 175, in _split_test
    _join_test(cr, t[0], t[1], ident, stack)
  File "/home/orchid/OpenERP/v7/server/openerp/workflow/workitem.py", line 183, in _join_test
    create(cr,[activity], inst_id, ident, stack)
  File "/home/orchid/OpenERP/v7/server/openerp/workflow/workitem.py", line 40, in create
    process(cr, res, ident, stack=stack)
  File "/home/orchid/OpenERP/v7/server/openerp/workflow/workitem.py", line 52, in process
    result = _execute(cr, workitem, activity, ident, stack)
  File "/home/orchid/OpenERP/v7/server/openerp/workflow/workitem.py", line 106, in _execute
    returned_action = wkf_expr.execute(cr, ident, workitem, activity)
  File "/home/orchid/OpenERP/v7/server/openerp/workflow/wkf_expr.py", line 67, in execute
    return _eval_expr(cr, ident, workitem, activity['action'])
  File "/home/orchid/OpenERP/v7/server/openerp/workflow/wkf_expr.py", line 57, in _eval_expr
    ret = eval(line, env, nocopy=True)
  File "/home/orchid/OpenERP/v7/server/openerp/tools/safe_eval.py", line 241, in safe_eval
    return eval(test_expr(expr, _SAFE_OPCODES, mode=mode), globals_dict, locals_dict)
  File "", line 1, in <module>
  File "/home/orchid/OpenERP/v7/server/openerp/osv/orm.py", line 377, in function_proxy
    return attr(self._cr, self._uid, [self._id], *args, **kwargs)
  File "/home/orchid/OpenERP/custom/mrp_product_cost_calculation/mrp_production.py", line 28, in action_production_end
    write_res = super(mrp_production, self).action_production_end(cr, uid, ids, context)
TypeError: action_production_end() takes exactly 4 arguments (5 given)