I was using xsltproc as my XSLT processor, but it ran out of memory on a
large book, so I decided to try Xalan and Saxon to convert a test book.
I set up Xalan and Saxon according to the instructions in Bob Stayton's
book, DocBook XSL: The Definitive Guide
(http://www.sagehill.net/docbookxsl/index.html). However, when I try to
use FOP 0.93 to convert either of the attached FO files, it reports the
following exception:
org.xml.sax.SAXParseException: Content is not allowed in prolog.
I pasted full output of the exception below.
Has anyone else experienced this problem? Please take a look at the
attached FO files and tell me what's wrong.
Regards,
Jeff Powanda
[Fatal Error] :1:1: Content is not allowed in prolog.
Jun 9, 2007 5:21:38 PM org.apache.fop.image.analyser.XMLReader
createDocument
WARNING: Error while constructing image from XML
org.xml.sax.SAXParseException: Content is not allowed in prolog.
at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown
Source)
at
javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:98)
at
org.apache.fop.image.analyser.XMLReader.createDocument(XMLReader.java:11
5)
at
org.apache.fop.image.analyser.XMLReader.loadImage(XMLReader.java:95)
at
org.apache.fop.image.analyser.XMLReader.verifySignature(XMLReader.java:6
5)
at
org.apache.fop.image.analyser.ImageReaderFactory.make(ImageReaderFactory
.java:85)
at
org.apache.fop.image.ImageFactory.loadImage(ImageFactory.java:220)
at org.apache.fop.image.ImageLoader.loadImage(ImageLoader.java:56)
at
org.apache.fop.image.ContextImageCache.getImage(ImageFactory.java:432)
at
org.apache.fop.image.ImageFactory.getImage(ImageFactory.java:157)
at
org.apache.fop.fo.flow.ExternalGraphic.bind(ExternalGraphic.java:68)
at org.apache.fop.fo.FObj.processNode(FObj.java:118)
at
org.apache.fop.fo.FOTreeBuilder$MainFOHandler.startElement(FOTreeBuilder
.java:321)
at
org.apache.fop.fo.FOTreeBuilder.startElement(FOTreeBuilder.java:185)
at
org.apache.xalan.transformer.TransformerIdentityImpl.startElement(Transf
ormerIdentityImpl.java:1072)
at
org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
at
org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown
Source)
at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDis
patcher.dispatch(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unkno
wn Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown
Source)
at
org.apache.xalan.transformer.TransformerIdentityImpl.transform(Transform
erIdentityImpl.java:484)
at
org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:165)
at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:115)
at org.apache.fop.cli.Main.startFOP(Main.java:160)
at org.apache.fop.cli.Main.main(Main.java:191)
Jun 9, 2007 5:21:38 PM org.apache.fop.image.ImageFactory loadImage
SEVERE: Error while recovering image information () : null
java.lang.NullPointerException
at
org.apache.fop.image.analyser.XMLReader.verifySignature(XMLReader.java:6
6)
at
org.apache.fop.image.analyser.ImageReaderFactory.make(ImageReaderFactory
.java:85)
at
org.apache.fop.image.ImageFactory.loadImage(ImageFactory.java:220)
at org.apache.fop.image.ImageLoader.loadImage(ImageLoader.java:56)
at
org.apache.fop.image.ContextImageCache.getImage(ImageFactory.java:432)
at
org.apache.fop.image.ImageFactory.getImage(ImageFactory.java:157)
at
org.apache.fop.fo.flow.ExternalGraphic.bind(ExternalGraphic.java:68)
at org.apache.fop.fo.FObj.processNode(FObj.java:118)
at
org.apache.fop.fo.FOTreeBuilder$MainFOHandler.startElement(FOTreeBuilder
.java:321)
at
org.apache.fop.fo.FOTreeBuilder.startElement(FOTreeBuilder.java:185)
at
org.apache.xalan.transformer.TransformerIdentityImpl.startElement(Transf
ormerIdentityImpl.java:1072)
at
org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
at
org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown
Source)
at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDis
patcher.dispatch(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unkno
wn Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown
Source)
at
org.apache.xalan.transformer.TransformerIdentityImpl.transform(Transform
erIdentityImpl.java:484)
at
org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:165)
at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:115)
at org.apache.fop.cli.Main.startFOP(Main.java:160)
at org.apache.fop.cli.Main.main(Main.java:191)
Jun 9, 2007 5:21:38 PM org.apache.fop.fo.flow.ExternalGraphic bind
SEVERE: Image not available: url()
Jun 9, 2007 5:21:39 PM org.apache.fop.cli.Main startFOP
SEVERE: Exception
javax.xml.transform.TransformerException:
org.apache.fop.fo.ValidationException:
file:///c:/docs/40SP/xml/other/indextest/IndexTest.fo:13:11234:
Error(13/11234): fo:block is not a valid child element of fo:root.
at
org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:168)
at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:115)
at org.apache.fop.cli.Main.startFOP(Main.java:160)
at org.apache.fop.cli.Main.main(Main.java:191)
---------
javax.xml.transform.TransformerException:
org.apache.fop.fo.ValidationException:
file:///c:/docs/40SP/xml/other/indextest/IndexTest.fo:13:11234:
Error(13/11234): fo:block is not a valid child element of fo:root.
at
org.apache.xalan.transformer.TransformerIdentityImpl.transform(Transform
erIdentityImpl.java:501)
at
org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:165)
at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:115)
at org.apache.fop.cli.Main.startFOP(Main.java:160)
at org.apache.fop.cli.Main.main(Main.java:191)
Caused by: org.apache.fop.fo.ValidationException:
file:///c:/docs/40SP/xml/other/indextest/IndexTest.fo:13:11234:
Error(13/11234): fo:block is not a valid child element of fo:root.
at org.apache.fop.fo.FONode.invalidChildError(FONode.java:393)
at org.apache.fop.fo.FONode.invalidChildError(FONode.java:378)
at
org.apache.fop.fo.pagination.Root.validateChildNode(Root.java:127)
at
org.apache.fop.fo.FOTreeBuilder$MainFOHandler.startElement(FOTreeBuilder
.java:303)
at
org.apache.fop.fo.FOTreeBuilder.startElement(FOTreeBuilder.java:185)
at
org.apache.xalan.transformer.TransformerIdentityImpl.startElement(Transf
ormerIdentityImpl.java:1072)
at
org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDis
patcher.dispatch(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unkno
wn Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown
Source)
at
org.apache.xalan.transformer.TransformerIdentityImpl.transform(Transform
erIdentityImpl.java:484)
... 4 more
---------
org.apache.fop.fo.ValidationException:
file:///c:/docs/40SP/xml/other/indextest/IndexTest.fo:13:11234:
Error(13/11234): fo:block is not a valid child element of fo:root.
at org.apache.fop.fo.FONode.invalidChildError(FONode.java:393)
at org.apache.fop.fo.FONode.invalidChildError(FONode.java:378)
at
org.apache.fop.fo.pagination.Root.validateChildNode(Root.java:127)
at
org.apache.fop.fo.FOTreeBuilder$MainFOHandler.startElement(FOTreeBuilder
.java:303)
at
org.apache.fop.fo.FOTreeBuilder.startElement(FOTreeBuilder.java:185)
at
org.apache.xalan.transformer.TransformerIdentityImpl.startElement(Transf
ormerIdentityImpl.java:1072)
at
org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
at
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDis
patcher.dispatch(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unkno
wn Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown
Source)
at
org.apache.xalan.transformer.TransformerIdentityImpl.transform(Transform
erIdentityImpl.java:484)
at
org.apache.fop.cli.InputHandler.transformTo(InputHandler.java:165)
at org.apache.fop.cli.InputHandler.renderTo(InputHandler.java:115)
at org.apache.fop.cli.Main.startFOP(Main.java:160)
at org.apache.fop.cli.Main.main(Main.java:191)