[google-appengine] Error when deploying to dev server

[midi]

runserver:
     [java] Feb 26, 2010 4:13:16 PM
com.google.apphosting.utils.jetty.JettyLogger warn
     [java] WARNING: failed _ah_StaticFileFilter
     [java] java.lang.ClassCastException:
com.google.apphosting.utils.jetty.AppEngineWebAppContext
$AppEngineServletContext cannot be cast to
org.mortbay.jetty.handler.ContextHandler$SContext
     [java]         at
com.google.appengine.tools.development.StaticFileFilter.init(StaticFileFilter.java:
47)
     [java]         at
org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:99)
     [java]         at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
40)
     [java]         at
org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:
589)
     [java]         at
org.mortbay.jetty.servlet.Context.startContext(Context.java:139)
     [java]         at
org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:
1218)
     [java]         at
org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:
500)
     [java]         at
org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:448)
     [java]         at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
40)
     [java]         at
org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:
117)
     [java]         at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
40)
     [java]         at
org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:
117)
     [java]         at org.mortbay.jetty.Server.doStart(Server.java:
217)
     [java]         at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
40)
     [java]         at
com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:
188)
     [java]         at
com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:
147)
     [java]         at
com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:
219)
     [java]         at
com.google.appengine.tools.development.DevAppServerMain
$StartAction.apply(DevAppServerMain.java:162)
     [java]         at com.google.appengine.tools.util.Parser
$ParseResult.applyArgs(Parser.java:48)
     [java]         at
com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:
113)
     [java]         at
com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:
89)
     [java] Feb 26, 2010 4:13:16 PM
com.google.apphosting.utils.jetty.JettyLogger warn
     [java] WARNING: Failed startup of context
com.google.apphosting.utils.jetty.devappenginewebappcont...@1b15692{/,C:
\searchTube\build\web}
     [java] java.lang.ClassCastException:
com.google.apphosting.utils.jetty.AppEngineWebAppContext
$AppEngineServletContext cannot be cast to
org.mortbay.jetty.handler.ContextHandler$SContext
     [java]         at
com.google.appengine.tools.development.StaticFileFilter.init(StaticFileFilter.java:
47)
     [java]         at
org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:99)
     [java]         at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
40)
     [java]         at
org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:
589)
     [java]         at
org.mortbay.jetty.servlet.Context.startContext(Context.java:139)
     [java]         at
org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:
1218)
     [java]         at
org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:
500)
     [java]         at
org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:448)
     [java]         at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
40)
     [java]         at
org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:
117)
     [java]         at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
40)
     [java]         at
org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:
117)
     [java]         at org.mortbay.jetty.Server.doStart(Server.java:
217)
     [java]         at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
40)
     [java]         at
com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:
188)
     [java]         at
com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:
147)
     [java]         at
com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:
219)
     [java]         at
com.google.appengine.tools.development.DevAppServerMain
$StartAction.apply(DevAppServerMain.java:162)
     [java]         at com.google.appengine.tools.util.Parser
$ParseResult.applyArgs(Parser.java:48)
     [java]         at
com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:
113)
     [java]         at
com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:
89)
     [java] The server is running at http://localhost:9090/

Any idea how to resolve ?

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