导入案例模板，填写所有数据，保存后导入案例，报错

Fatal error: Uncaught Error: Call to undefined method fileModel::getRowsFromExcel() in E:\zbox\app\zentao\module\port\model.php:454 Stack trace: #0 E:\zbox\app\zentao\module\port\model.php(430): portModel->getRowsFromExcel() #1 E:\zbox\app\zentao\module\port\control.php(155): portModel->format('', '') #2 E:\zbox\app\zentao\framework\base\router.class.php(2132): port->ajaxGetTbody('', '0', '') #3 E:\zbox\app\zentao\www\index.php(73): baseRouter->loadModule() #4 {main} thrown in E:\zbox\app\zentao\module\port\model.php on line 454
16:43:49 Uncaught Error: Call to undefined method fileModel::getRowsFromExcel() in E:\zbox\app\zentao\module\port\model.php:454
Stack trace:
#0 E:\zbox\app\zentao\module\port\model.php(430): portModel->getRowsFromExcel()
#1 E:\zbox\app\zentao\module\port\control.php(155): portModel->format('', '')
#2 E:\zbox\app\zentao\framework\base\router.class.php(2132): port->ajaxGetTbody('', '0', '')
#3 E:\zbox\app\zentao\www\index.php(73): baseRouter->loadModule()
#4 {main}
thrown in E:\zbox\app\zentao\module\port\model.php on line 454 when visiting port-ajaxGetTbody--0-?tid=hkqkk61a