Yii2 - Nozzha Widgets
The preferred way to install this extension is through composer.
Either run
php composer.phar require --prefer-dist nozzha/nozzha-widgets "*"
or add
"nozzha/nozzha-widgets": "*"
to the require section of your composer.json file.
Firstly you should not forget:
<?php
use nozzha\widgets\...;
?>