Java EE (Java Enterprise Edition) General Discussion

Already I read out the discussion about this topic. But still I face the same problem. I have already put the jstl and standard jar files in the WEB-INF\lib directory and modified the web.xml file adding the following lines.
<taglib>
<taglib-uri>http://java.sun.com/jstl/fmt</taglib-uri>
<taglib-location>/WEB-INF/lib/fmt.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/fmt-rt</taglib-uri>
<taglib-location>/WEB-INF/lib/fmt-rt.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
<taglib-location>/WEB-INF/lib/c.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/core-rt</taglib-uri>
<taglib-location>/WEB-INF/lib/c-rt.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/sql</taglib-uri>
<taglib-location>/WEB-INF/lib/sql.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/sql-rt</taglib-uri>
<taglib-location>/WEB-INF/lib/sql-rt.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/x</taglib-uri>
<taglib-location>/WEB-INF/lib/x.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>http://java.sun.com/jstl/x-rt</taglib-uri>
<taglib-location>/WEB-INF/lib/x-rt.tld</taglib-location>
</taglib>
In jsp page I have written the following lines.

<%@taglib prefix="c" uri="http://java.sun.com/jstl/core-rt"%>
<%@taglib prefix="fmt" uri="http://java.sun.com/jstl/fmt_rt"%>

I have got the following error :

org.apache.jasper.JasperException: File "/WEB-INF/lib/c-rt.tld" not found

please help