JSP:INCLUDE Issue

[Nagesh Rachakonda]

Hello,
I am calling main.jsp from a html page. This main.jsp consists of few include files e.g. as below:
*************************************************************
html content ...
<%@ file="x.jsp" %>
html content ...

<%@ file="y.jsp" %>
html content ...
<jsp:include page="../summaryReport.do" flush="true">
<jsp aram name="app_name" value="FVP" />
</jsp:include>
html content ...

<%@ file="z.jsp" %>
html content ...
*************************************************************
Where the problem is occuring due to JSP:INCLUDE action.
I am getting the following error:
Error 500: ERROR: Cannot forward. The response has already been committed.
In that action, I am calling a struts action with few input parametrs. This prepares a sql, executes it, get the output data and displays in a jsp (e.g a.jsp). The ActionForward is set to this a.jsp page on success. I have debugged the code. I was able to see the proper execution till this actionforward. After that it displays above error message with the remaining HTML content. The whole request is part of a session.
Requested Questions:
How I can avoid this problem?
Is there any other best way to do it?
What is the problem with my code?
Any solutions are welcome.

Thanks
Nagesh.

[Nagesh Rachakonda]

Guys,
Any inputs on this . . . .please . . . ?
I am using JDK 1.3 and JSP 1.1 versions for WAS 4.
Thanks.
[ May 03, 2004: Message edited by: Nagesh Rachakonda ]

[Nimchi Yung]

You need to move to JSP 1.2 container.
--Nimchi