How can I deploy pluto into Resin 3.0.x ?

Hi,
I've tried but I failed to do it.(Resin 3.0.17,pluto-1.1.0-beta2)
Here's the error message:

[21:51:37.536] Root WebApplicationContext: initialization completed in 1382
ms
[21:51:37.536] Starting up Pluto Portal Driver. . .
[21:51:37.917] Initializing Portlet Container. . .
[21:51:37.957] Portlet Container [Pluto Portal Driver] created.
[21:51:37.957] Portlet Container [Pluto Portal Driver]: Container
initialized successfully.
[21:51:37.957] Pluto portlet container started.
[21:51:37.957] ********** Pluto Portal Driver Started **********
[21:51:37.957]
[21:51:37.957]
[21:51:38.177] AboutPortlet: init
[21:51:40.761] javax.servlet.ServletException: Unable to resolve portlet
'AboutPortlet'
[21:51:40.761]     at org.apache.pluto.core.PortletServlet.init(
PortletServlet.java:108)
[21:51:40.761]     at javax.servlet.GenericServlet.init(GenericServlet.java
:69)
[21:51:40.761]     at
com.caucho.server.dispatch.ServletConfigImpl.createServlet(
ServletConfigImpl.java:600)
[21:51:40.761]     at com.caucho.server.dispatch.ServletManager.init(
ServletManager.java:152)
[21:51:40.761]     at com.caucho.server.webapp.Application.start(
Application.java:1599)


Thanks.

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