why repeat link style and metatag in pages at yii2

Question

I use yii2 framwork. My set link style css with: $this->registerCssFile command and set pages metatag in my controller.

But when page is load,link style and mettags Twice are load.

Plz see under link:

view-source:http://designtk.ir/

Answer 1

You either have loaded the header twice check your /layout.php for repeated

<?php $this->head() ?>

or you have registered the core scripts twice

Yii::app()->getClientScript()->registerCoreScript('jquery');
Yii::app()->getClientScript()->registerCoreScript('jquery-ui.min.js');
Yii::app()->getClientScript()->registerCoreScript('jquery-ui.min.css');