complexTable

complexTable 提示错误，请帮忙解决！

类：form\list_user\Builder不存在
* @throws Exception
*/
public function __call($methodName, $argument)
{
$type = strtolower(substr($methodName, 3));

if ($type != '') {
$class_name = 'form\\'.$type.'\\Builder';
if (!class_exists($class_name)) {
throw new Exception('类：'.$class_name.'不存在', 7001);
}

if (method_exists($class_name, 'item')) {
$class = new $class_name;
$form_item = call_user_func_array([$class, 'item'], $argument);
$form_item['type'] = $type;

if (!empty($class->js)) {
$this->_vars['extend_js_list'][$type] = $this->parseUrl($class->js, $type);