Thread:Extension talk:ChapTimeline/Can anyone post detailed instructions on how to install this extension?

I am using MediaWiki 1.22. I uploaded the extension to the extension directory with the folder name ChapTimeline. I then added the require_once( "$IP/extensions/ChapTimeline/ChapTimeline.php" ); to the LocalSettings.php. But when I add the sample code as follows, it does not work:

What am I doing wrong? Zzmonty (talk) 14:22, 2 March 2014 (UTC)