Tomcat-"Skipped installing application listeners due to previous error

[LanyA]

I installed Tomcat 5.5 and used to be able to run my servlets/JSP pages with no problem, until I created a web application using Tapestry 3.0.1, located in the Tapestry directory. The only thing I did was copy the jar files within the C:\Tapestry\lib\ext directory to C:\[TOMCAT_INSTALL]\shared\lib, and to copy my application's xml file to C:\[Tomcat_INSTALL]\conf\catalina\localhost.

(I followed directions given in this tutorial:

http://www2.cpttm.org.mo/cyberlab/softdev/tapestry/tutorial1/GettingStartedWithTapestry.html)

Now every time I start Tomcat, I get this message as part of the output:

Feb 3, 2005 9:30:15 AM org.apache.catalina.core.StandardContext start
SEVERE: Skipped installing application listeners due to previous error(s)
Feb 3, 2005 9:30:15 AM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Error listenerStart
Feb 3, 2005 9:30:15 AM org.apache.catalina.core.StandardContext start
SEVERE: Context startup failed due to previous errors
(...etc. etc....)

I couldn't find any previous errors, and even when I try to restore my environment to what it was before creating the Tapestry application, Tomcat still refuses to work right. Can anyone help? I've been working on this for so long now with no results in sight. Thanks in advance!