How to correctly configure and use the video upload demo provided by qiniu?

I downloaded the complete source code of the example provided by qiniu, hoping to directly use it by modifying the account information. I have configured the congfig. php file, and finally published it to the Internet, prompting the smarty error. I hope to help me solve it. How can I configure and use it correctly? Thank you!

I downloaded the complete source code of the example provided by qiniu, hoping to directly use it by modifying the account information.
I configured

The congfig. php file is finally published online, prompting

Smarty error. Could you help me solve this problem? How can I configure and use it correctly? Thank you!

Reply content:

I downloaded the complete source code of the example provided by qiniu, hoping to directly use it by modifying the account information.
I configured

The congfig. php file is finally published online, prompting

Smarty error. Could you help me solve this problem? How can I configure and use it correctly? Thank you!

Run "composer install" under this directory"
To install the smarty dependency. Specific Use of composer can refer to: http://www.phpcomposer.com/