enhydra5的错误提示

[soft_dream]

2006.12.18 10:20:12: Multiserver,ERROR+ at com.lutris.appserver.server.h
ttpPresentation.servlet.HttpPresentationServlet.init(Unknown Source)
2006.12.18 10:20:12: Multiserver,ERROR+ at com.lutris.appserver.server.h
ttpPresentation.servlet.HttpPresentationServlet.init(Unknown Source)
2006.12.18 10:20:12: Multiserver,ERROR+ at org.apache.tomcat.core.Servle
tWrapper$2.method(Unknown Source)
2006.12.18 10:20:12: Multiserver,ERROR+ at org.apache.tomcat.core.Servle
tWrapper.handleInvocation(Unknown Source)
2006.12.18 10:20:12: Multiserver,ERROR+ at org.apache.tomcat.core.Servle
tWrapper.loadServlet(Unknown Source)
2006.12.18 10:20:12: Multiserver,ERROR+ at org.apache.tomcat.core.Contex
t.loadServlets(Unknown Source)
2006.12.18 10:20:12: Multiserver,ERROR+ at org.apache.tomcat.core.Contex
t.setupLoadableServlet(Unknown Source)
2006.12.18 10:20:12: Multiserver,ERROR+ at org.enhydra.servlet.servletMa
nager.ServletManager.start(Unknown Source)
2006.12.18 10:20:12: Multiserver,ERROR+ at org.enhydra.servlet.servletMa
nager.ServletManager.startAllContexts(Unknown Source)
2006.12.18 10:20:12: Multiserver,ERROR+ at org.enhydra.servlet.ServletCo
ntainer.readConfigFile(Unknown Source)
2006.12.18 10:20:12: Multiserver,ERROR+ at org.enhydra.servlet.ServletCo
ntainer.start(Unknown Source)
2006.12.18 10:20:12: Multiserver,ERROR+ at com.lutris.multiServer.MultiS
erver.start(Unknown Source)
2006.12.18 10:20:12: Multiserver,ERROR+ at com.lutris.multiServer.MultiS
erver.main(Unknown Source)
2006.12.18 10:20:12: oa,ERROR: cannot load servlet name: oa

这是什么错误引起的?如何修改?