struts1- problem installing struts-faces

[Hubert Hers]

Hi,
 
I have a problem installing the struts-faces-example1-1.3.8 example.
After installing tomcat 5.5.23, and copying the
struts-faces-example1-1.3.8.war to my webapps directory, and starting
tomcat, I get following error:
 
SEVERE: Unable to initialize Struts ActionServlet due to an unexpected
exception or error thrown, so marking the servlet as unavailable.  Most
likely, this is due to an incorrect or missing library dependency.
 
Please help.
 
Thanks,
 
Hubert