Yii1 load yii2 components and exstentions didn't load


I tried to load Yii2 in a Yii1 project so i can convert the Yii1 to a Yii2 project step by step.

But if i load Yii2 CMenu class and my extensions no longer work. it says can’t find on alle exstdntions en components.

Can some help me?

greetings Reinier de la Parra

1.1 isn’t compatible with 2.0 so it’s not easy to upgrade. See http://www.yiiframework.com/doc-2.0/guide-intro-upgrade-from-v1.html