title: Install extension in Yii2
body: <p>Hi can someone show me steps how can I install fabric.js in yii2 project? This is Fabric.js: <a href="https://github.com/kangax/fabric.js/" rel="nofollow noreferrer">link to github</a></p>
  
  <p>There I can see that I can install fabric.js only by bower or npm. I don know that i have bower on start in Yii2 procejct or I should I install this bower. Now I only used composer install and update. And I dont know how to install this in my project. Maybe anyone can show me easiest way to install this by composer only or other easy way? I tried to write command : </p>
  
  <blockquote>
    <p>bower install fabric</p>
  </blockquote>
  
  <p>but i have error: </p>
  
  <blockquote>
    <p>bash: bower: command not found</p>
  </blockquote>