When I reported on IRC that my skirmish maps weren't working, @Stan`gave me a link to this script
https://code.wildfiregames.com/P232
I've attached the python script it to this post.
python3 <scriptname> <version> <path>
The correct version to use is "7". For the path, I used "." (single dot) while in the directory containing my custom skirmish maps.
After that, you may have to edit your xml. I still get errors such as the following wh