Tags Causing Exceptions ?

Hi all ,

I am using Struts tags + jstl + display tags in my application....

It was working fine before , its giving following exception from last few days .

java.lang.AbstractMethodError: javax.servlet.jsp.PageContext.getVariableResolver()Ljavax/servlet/jsp/el/VariableResolver;

application is running fine on another machine..

help me out ..

[380 byte] By [Jasdeep.Singha] at [2007-11-27 9:51:26]