title: when Converting my gsp page to pdf i am getting error
body: <p>Error stacktrace:</p>
  
  <pre><code>org.xml.sax.SAXParseException: The entity name must immediately follow the '&amp;' in the entity reference.
      at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
      at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transformIdentity(TransformerImpl.java:638)
      at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:709)
      at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:313)
      at org.xhtmlrenderer.resource.XMLResource$XMLResourceBuilder.createXMLResource(XMLResource.java:189)
      at org.xhtmlrenderer.resource.XMLResource.load(XMLResource.java:75)
      at org.xhtmlrenderer.resource.XMLResource$load.call(Unknown Source)
      at grails.plugin.rendering.document.XhtmlDocumentService.createDocument(XhtmlDocumentService.groovy:55)
      at grails.plugin.rendering.document.XhtmlDocumentService.createDocument(XhtmlDocumentService.groovy:43)
      at grails.plugin.rendering.document.XhtmlDocumentService.createDocument(XhtmlDocumentService.groovy:38)
      at grails.plugin.rendering.document.XhtmlDocumentService$createDocument.call(Unknown Source)
      at grails.plugin.rendering.RenderingService.render(RenderingService.groovy:34)
      at grails.plugin.rendering.RenderingService.render(RenderingService.groovy:33)
      at grails.plugin.rendering.RenderingService$render$0.callCurrent(Unknown Source)
      at grails.plugin.rendering.RenderingService.render(RenderingService.groovy:63)
      at grails.plugin.rendering.RenderingService$render.call(Unknown Source)
      at RenderingGrailsPlugin$_closure1.doCall(RenderingGrailsPlugin.groovy:48)
      at RenderingGrailsPlugin$_closure1.call(RenderingGrailsPlugin.groovy)
      at com.zocampus.ExamScoresController$_closure31.doCall(ExamScoresController.groovy:525)
      at com.zocampus.ExamScoresController$_closure31.doCall(ExamScoresController.groovy)
      at org.grails.jaxrs.web.JaxrsFilter.doFilterInternal(JaxrsFilter.java:46)
      at java.lang.Thread.run(Thread.java:619)
  </code></pre>