tomcat genarated errors after restarting service.?????

[Dwayne Ghant]

Is anybody out there familiar with the error listed below. I know it 
somthing simple
but I just can't figure out what it is.

javax.servlet.ServletException: 
org.apache.xml.utils.WrappedRuntimeException: The output format must 
have a '{http://xml.apache.org/xalan}content-handler' property!
    at 
org.jasig.portal.PortalSessionManager.doGet(PortalSessionManager.java:271) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
   .
   .....
root cause

java.lang.RuntimeException: 
org.apache.xml.utils.WrappedRuntimeException: The output format must 
have a '{http://xml.apache.org/xalan}content-handler' property!
   at 
org.apache.xalan.transformer.TransformerImpl.run(TransformerImpl.java:3407)
   ...

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Dwayne A. Ghant
Application Developer
Temple University
215.204.5555
[EMAIL PROTECTED]