runGuiDemo.bat - Cannot find the declaration of element 'infinispan'.

Both sample.xml and gui-demo-cache-config.xml cause the following error:
D:\tools\infinispan-4.2.1.CR2\bin>runGuiDemo.bat
log4j:WARN No appenders could be found for logger (org.infinispan.config.Infinis
panConfiguration).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more in
fo.
Exception in thread "pool-1-thread-1" java.lang.RuntimeException: java.io.IOExce
ption
at org.infinispan.demo.InfinispanDemo$10.run(InfinispanDemo.java:355)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExec
utor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.io.IOException
at org.infinispan.config.InfinispanConfiguration.newInfinispanConfigurat
ion(InfinispanConfiguration.java:264)
at org.infinispan.config.InfinispanConfiguration.newInfinispanConfigurat
ion(InfinispanConfiguration.java:282)
at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager
.java:288)
at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager
.java:273)
at org.infinispan.demo.InfinispanDemo$10.run(InfinispanDemo.java:323)
... 3 more
Caused by: javax.xml.bind.UnmarshalException

• with linked exception:
  [org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of elemen
  t 'infinispan'.]
  at javax.xml.bind.helpers.AbstractUnmarshallerImpl.createUnmarshalExcept
  ion(AbstractUnmarshallerImpl.java:315)
  at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.cr
  eateUnmarshalException(UnmarshallerImpl.java:503)
  at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.un
  marshal0(UnmarshallerImpl.java:204)
  at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.un
  marshal(UnmarshallerImpl.java:173)
  at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnm
  arshallerImpl.java:120)
  at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnm
  arshallerImpl.java:103)
  at org.infinispan.config.InfinispanConfiguration.newInfinispanConfigurat
  ion(InfinispanConfiguration.java:256)
  ... 7 more
  Caused by: org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration
  of element 'infinispan'.
  at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAX
  ParseException(ErrorHandlerWrapper.java:195)
  at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(Err
  orHandlerWrapper.java:131)
  at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(
  XMLErrorReporter.java:384)
  at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(
  XMLErrorReporter.java:318)
  at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleS
  tartElement(XMLSchemaValidator.java:1915)
  at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startEl
  ement(XMLSchemaValidator.java:705)
  at com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorHandlerIm
  pl.startElement(ValidatorHandlerImpl.java:549)
  at com.sun.xml.internal.bind.v2.runtime.unmarshaller.ValidatingUnmarshal
  ler.startElement(ValidatingUnmarshaller.java:78)
  at com.sun.xml.internal.bind.v2.runtime.unmarshaller.SAXConnector.startE
  lement(SAXConnector.java:137)
  at org.xml.sax.helpers.XMLFilterImpl.startElement(XMLFilterImpl.java:527
  )
  at org.infinispan.config.parsing.NamespaceFilter.startElement(NamespaceF
  ilter.java:29)
  at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startEle
  ment(AbstractSAXParser.java:501)
  at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scan
  StartElement(XMLNSDocumentScannerImpl.java:400)
  at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSCo
  ntentDriver.scanRootElementHook(XMLNSDocumentScannerImpl.java:626)
  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
  l$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3103)
  at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$Prolog
  Driver.next(XMLDocumentScannerImpl.java:922)
  at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(X
  MLDocumentScannerImpl.java:648)
  at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next
  (XMLNSDocumentScannerImpl.java:140)
  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
  l.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(X
  ML11Configuration.java:808)
  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(X
  ML11Configuration.java:737)
  at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.
  java:119)
  at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Ab
  stractSAXParser.java:1205)
  at org.xml.sax.helpers.XMLFilterImpl.parse(XMLFilterImpl.java:333)
  at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.un
  marshal0(UnmarshallerImpl.java:200)
  ... 11 more