Setting Eclipse Environment: required jar file for

Hi,

I am setting up Eclipse development environment for CQ 5.4, and am facing an issue with finding the exact jar files that will parse the <cq:defineObjects>  tag. I have the followed the instructions under : http://wem.help.adobe.com/enterprise/en_US/10-0/wem/developing/developmenttools/developing _with_eclipse.html

And I have included the  sling.scripting.jsp.taglib-2.0.6.jar  in my classpath. I get the following error : "The TagExtraInfo class for "cq:defineObjects" (com.day.cq.wcm.tags.DefineObjectsTEI) could not be instantiated".

Do I need any other jars to included in the classpath?

thanks,

pvr