Extension talk:InteractiveTimeline

I've installed this Extension. And the installation went well.

Than when i put in a page the code:

I received an error like this:

"Fatal error: Call to undefined method ParserOutput::addJSConfigVars in /home/dicki/public_html/dickipedia/extensions/InteractiveTimeline/InteractiveTimeline.body.php on line 390"

Any suggestion?

Hope to hear from you.