I just updated my MediaWiki installation to version 1.24 and installed Vector from git. It breaks the page with a fatal PHP error. I have the Vector extension installed and up to date.
My Apache error log says (slightly anonymized):
[Thu Nov 27 10:55:23 2014] [error] [client x.x.x.x] PHP Fatal error: Call to undefined method VectorTemplate::getIndicators() in /.../wiki/skins/Vector/VectorTemplate.php on line 105, referer: http://nordiclarp.org/wiki/Main_Page
My temporary fix is to comment out the php running the getIndicators method.