Nutch Search Error

[archaaa]

Im trying to install nutch-0.7 on windows xp(sp 2) using cygwin and tomcat 4.0 under the guidance of http://lucene.apache.org/nutch/tutorial.html. All went well until the search was made. Im also quite confused with this one from the website:======================================
Assuming you've unpacked Tomcat as ~/local/tomcat, then the Nutch war file may be installed with the commands:

rm -rf ~/local/tomcat/webapps/ROOT*
cp nutch*.war ~/local/tomcat/webapps/ROOT.war
The webapp finds its indexes in ./segments, relative to where you start Tomcat, so, if you've done intranet crawling, connect to your crawl directory, or, if you've done whole-web crawling, don't change directories, and give the command:

~/local/tomcat/bin/catalina.sh start
==================================
i replaced ~/local/tomcat with '/cygdrive/c/program files/tomcat/....' and i wonder if this is correct?

The error i made during the search is below:
======================================
description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException
at org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:207)
at org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:240)
at org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:187)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:810)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:199)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:145)
at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:210)
at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:596)
at org.apache.catalina.core.StandardPipeline.invoke(S tandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(Cont ainerBase.java:955)
at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:139)
at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:596)
at org.apache.catalina.core.StandardPipeline.invoke(S tandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(Cont ainerBase.java:955)
at org.apache.catalina.core.StandardContext.invoke(St andardContext.java:2460)
at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:133)
at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:596)
at org.apache.catalina.valves.ErrorDispatcherValve.in voke(ErrorDispatcherValve.java:119)
at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:594)
at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:117)
at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:594)
at org.apache.catalina.core.StandardPipeline.invoke(S tandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(Cont ainerBase.java:955)
at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineValve.java:127)
at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:596)
at org.apache.catalina.core.StandardPipeline.invoke(S tandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(Cont ainerBase.java:955)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(Co yoteAdapter.java:157)
at org.apache.coyote.http11.Http11Processor.process(H ttp11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11 ConnectionHandler.processConnection(Http11BaseProt ocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.process Socket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThr ead.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlR unnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Unknown Source)


root cause

java.lang.NullPointerException
at org.apache.nutch.searcher.NutchBean.init(NutchBean .java:96)
at org.apache.nutch.searcher.NutchBean.<init>(NutchBe an.java:82)
at org.apache.nutch.searcher.NutchBean.<init>(NutchBe an.java:72)
at org.apache.nutch.searcher.NutchBean.get(NutchBean. java:64)
at org.apache.jsp.search_jsp._jspService(search_jsp.j ava:108)
at org.apache.jasper.runtime.HttpJspBase.service(Http JspBase.java:92)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:810)
at org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:162)
at org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:240)
at org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:187)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:810)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:199)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:145)
at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:210)
at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:596)
at org.apache.catalina.core.StandardPipeline.invoke(S tandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(Cont ainerBase.java:955)
at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:139)
at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:596)
at org.apache.catalina.core.StandardPipeline.invoke(S tandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(Cont ainerBase.java:955)
at org.apache.catalina.core.StandardContext.invoke(St andardContext.java:2460)
at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:133)
at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:596)
at org.apache.catalina.valves.ErrorDispatcherValve.in voke(ErrorDispatcherValve.java:119)
at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:594)
at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:117)
at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:594)
at org.apache.catalina.core.StandardPipeline.invoke(S tandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(Cont ainerBase.java:955)
at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineValve.java:127)
at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:596)
at org.apache.catalina.core.StandardPipeline.invoke(S tandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(Cont ainerBase.java:955)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(Co yoteAdapter.java:157)
at org.apache.coyote.http11.Http11Processor.process(H ttp11Processor.java:874)
at org.apache.coyote.http11.Http11BaseProtocol$Http11 ConnectionHandler.processConnection(Http11BaseProt ocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.process Socket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThr ead.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlR unnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Unknown Source)
============================
I would appreciate the help. Thx in advance. If its not too much trouble, pls contact me at <removed>thx again