JSTL - Resolve Entity Failed

[Christopher Zinn]

Running on Tomcat 4.1.29.
Windows XP SP1
Using JSTL
Copied standard.jar and jstl.jar to common/lib
Copied the TLDs to my application's /WEB-INF directory
Added tag libraries to the application's web.xml like this:

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

The application runs fine, but I get this message logged to my error log every time a page is first compiled. However, If lose internet connectivity then the JSP pages refuse to compile and the application dies (with a different message).

2003-11-06 11:35:42 StandardContext[/genesis]: Resolve entity failed-//Sub Microsystems, Inc.//DTD JSP Tag Library 1.2//EN <a href="http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd" target="_blank" rel="nofollow">http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd</a>
Resolve entity failed-//Sub Microsystems, Inc.//DTD JSP Tag Library 1.2//EN <a href="http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd" target="_blank" rel="nofollow">http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd</a>

Can someone tell me what i'm doing wrong? Thanks in advance for any help,
Chris