DA16200 DA16600 Freertos SDK Programmers Guide v3.2.8.1

I am trying to follow the instructions in section 14.7  of the User manual DA16200 DA16600 FreeRTOS SDK programmers guide define my own web pages. I am able to build and run the HTTP server APP and see the provided WEB page shown in the programmer guide (UM-WI-046).  But when I try to follow the read.me .txt file and teh instruction in the Notes. things don't seem to be correct and it does not work, if I run the perl script I get the following error message.

PS C:\Users\mschmid\Documents\Projects\Renesas\DA16200\DA16200_DA16600_SDK_FreeRTOS_v3.2.8.1\core\libraries\3rdparty\lwip\src\apps\http\makefsdata> perl .\makefsdata
FIND: Parameter format not correct