title: Yii2 - Filsh OAuth2 Server Installation
body: <p>I am currently trying to install a Yii2 extension for implementing an OAuth2 server (<a href="https://github.com/Filsh/yii2-oauth2-server" rel="nofollow noreferrer">https://github.com/Filsh/yii2-oauth2-server</a>). However, I keep running on the error below:</p>
  
  <p><img src="https://i.stack.imgur.com/CH7qy.png" alt="Error page"></p>
  
  <p>Does anyone have an idea on how to install this extension. I followed the instructions given but there was no mention about that error.</p>