Yii Call to a member function saveAs() on a non-object

обсуждение темы : http://www.yiiframework.com/forum/index.php/topic/8205-%D0%BF%D1%80%D0%B8-%D0%B7%D0%B0%D0%B3%D1%80%D1%83%D0%B7%D0%BA%D0%B8-%D1%84%D0%B0%D0%B9%D0%BB%D0%B0-%D0%B2%D1%8B%D0%B4%D0%B0%D1%91%D1%82-%D1%81%D0%BE%D0%BE%D0%B1%D1%89%D0%B5%D0%BD%D0%B8%D0%B5-saveas-on-a-non-object/

ещё обсуждение = http://www.yiiframework.com/forum/index.php/topic/19277-extension-xupload/page__st__60