error in JSTL

sir
i am new to JSTL and i am writing the code :

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

<html>
<head><title>JAI SHRI RAM</title></head>
<body>
<c:forEach var="f" begin="1" end="10">
abc
</c:forEach>

</body>
</html>

but the following code is giving the error :

org.apache.jasper.JasperException: This absolute uri (http://java.sun.com/jsp/jstl/core) cannot be resolved in either web.xml or the jar files deployed with this application

please tell me that what changes should i do . i am using tomcat 4.1

thanks in advance
parul

Do you have the JSTL distribution binary??

Try

instead of

sir i have tomcat 4.1.31 and also have JSTL binary but it is not running well.when i am writing the code for startdard tags the it is giving up the error . please tell me that where to put up the files ..

you can put the binary under "lib" directory inside your app directory. Like, myapp/lib/.

Have you tried to change that URI??