Issue with Retail app - wsdl file (getting errors)

Hi

I get below error when I try to open WSDL from "http://localhost/retail1/retail.php?wsdl" , please assist

I had downloaded code and copied retail folder  to "C:\xampp\htdocs" . the version of xampp provided in the code download section doesnot install- hence had to download the latest version (xampp-windows-x64-8.2.12-0-VS16-installer). XAMPP ControlPanel v3.3.0 open and Apache and MySQL starts without any errors. Retail App front end also loads up. However when we click on wsdl link we get below error in chrome.

Creating Soap project in SOAPUI with this wsdl gives below error

Can you please help to get this resolved.

********* error****************

This page contains the following errors:

Below is a rendering of the page up to the first error.

View page source snap as below