Thread:Project:Support desk/How to Create Wikia Sliders?

I'm trying to see if I can install a wikia-created extension called WikiaPhotoGallery, which I believe will allow me to create wikia sliders ( http://community.wikia.com/wiki/Help:Galleries,_Slideshows,_and_Sliders/wikitext#Slider ).

I've gotten the code for the extension by downloading it from the wikia repository ( https://github.com/Wikia/app ), and then I placed the extension in a folder inside of my wiki's extension folder. In my LocalSettings.php file, I added:

My wiki starts up without errors, but when I try to actually use the extension, e.g.,

.... I get the following error:

Fatal error: Call to undefined method TraditionalImageGallery::parse in E:\XAMPP\htdocs\mywiki\extensions\wikia\WikiaPhotoGallery\WikiaPhotoGalleryHelper.class.php on line 67

Can anyone help me figure out what the issue is?

OS: Windows 8.1

XAMPP-Portable: 5.6.3

MediaWiki: 1.24.1

PHP: 5.6.3 (apache2handler)

MySQL: 5.6.21

URL: N/A, Private wiki on localhost