I'm using Mediawiki 1.32.4 on CentOS 7. I'm testing the Daddio skin. Attempting to load the skin results in:
Fatal error: Class 'ModernTemplate' not found in /var/www/html/w/skins/Daddio/Daddio.skin.php on line 27
I believe we have the directory structure correct. After cloning into the skins/ folder, we performed a mv mediawiki-skins-Daddio/ Daddio:
skins# ls Anisa foreground Modern Poncho Tempo Vector Cavendish Gamepress MonoBook README Timeless WebPlatform CologneBlue Jony Nimbus README.md Truglass WPtouch Daddio LICENSE Pivot Refreshed Tweeki
And:
skins]# ls Daddio CODE_OF_CONDUCT.md Daddio.php i18n screenshots composer.json Daddio.skin.php package.json skin.json daddio Gruntfile.js package-lock.json
Finally:
skins# find . -iname '*ModernTemplate*' skins#
Daddio is the only skin we are having trouble with.