Board Thread:Support Requests - Getting Technical/@comment-406947-20140322185355/@comment-168424-20140327220357

Ysbert wrote: You will have to copy and paste all templates that the specific navbox template uses, beginning with the navbox.
 * 1) copy all code from the wikipedia template:Navbox page to your template:navbox page
 * 2) copy the code from the specific navbox you want to use to a new template page on your wiki.

These instructions assume a self-contained navbox template without dependencies on other templates. This is almost never true with Wikipedia templates.

Also, wikipedia:Template:Navbox isn't even a regular template. It appears to depend on the Scribunto extension. This extension appears to implement some kind of Lua support in Wikipedia and so the actual template is at wikipedia:Module:Navbox.

So, unless you can get Wikia to turn on the Scribunto extension, it can't be replicated here.