On my server I have php 7.4 installed with Xampp server. I have downloaded the koolreport pro 6.6.3 package as bought pro package, unzip it and copy the koolreport and examples forlder under the htdocs.
I am getting the following error :
Composer detected issues in your platform: Your Composer dependencies require a PHP version ">= 8.1.0".
Before purchasing I did check, if did compatible with 7.4 and it says compatible with all 7.x version.