[opencms-dev] exception report when editing a page

[imap.ecunet.org]

I am a new user to OpenCms.  I am using tomcat 4.1.29 with j2sdk1.4.1_06 and OpenCms 5.0.0.  I am going through the user documentation (UserDoc.pdf) and trying to create a new project called 'Nice Try'.  The project is created correctly and I included the /release/ folder.  I then go to the release folder in the Explorer view and lock installation.html.  I then click on the icon and select 'Edit page'.  At that point I get an Exception report.  The traceback is included below.  Am I doing something incorrectly or perhaps some software incompatibilities?  Thanx for any clues you can give me.

Jon Rowell
javax.servlet.ServletException: Servlet execution threw an exception
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2417)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:193)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:781)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:549)
	at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:589)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:666)
	at java.lang.Thread.run(Thread.java:536)

root cause 

java.lang.NoSuchMethodError: org.apache.xerces.dom.CoreDocumentImpl.getEncoding()Ljava/lang/String;
	at com.opencms.template.CmsXmlXercesParser.getOriginalEncoding(CmsXmlXercesParser.java:193)
	at com.opencms.template.CmsXmlXercesParser.getXmlText(CmsXmlXercesParser.java:131)
	at com.opencms.template.A_CmsXmlContent.getXmlText(A_CmsXmlContent.java:684)
	at com.opencms.template.A_CmsXmlContent.getXmlText(A_CmsXmlContent.java:673)
	at com.opencms.file.CmsResourceTypePage.copyResource(CmsResourceTypePage.java:391)
	at com.opencms.file.CmsObject.copyResource(CmsObject.java:684)
	at com.opencms.workplace.CmsXmlTemplateEditor.createTemporaryFile(CmsXmlTemplateEditor.java:100)
	at com.opencms.workplace.CmsXmlTemplateEditor.getContent(CmsXmlTemplateEditor.java:439)
	at com.opencms.template.cache.CmsElementXml.getContent(CmsElementXml.java:171)
	at com.opencms.template.cache.CmsUri.callCanonicalRoot(CmsUri.java:185)
	at com.opencms.template.cache.CmsElementCache.callCanonicalRoot(CmsElementCache.java:149)
	at com.opencms.launcher.CmsXmlLauncher.generateOutput(CmsXmlLauncher.java:285)
	at com.opencms.launcher.CmsXmlLauncher.launch(CmsXmlLauncher.java:341)
	at com.opencms.launcher.A_CmsLauncher.initlaunch(A_CmsLauncher.java:274)
	at com.opencms.core.OpenCms.showResource(OpenCms.java:956)
	at com.opencms.core.OpenCmsHttpServlet.doGet(OpenCmsHttpServlet.java:310)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2417)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
	at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:193)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:781)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:549)
	at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:589)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:666)
	at java.lang.Thread.run(Thread.java:536)
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