java.lang.NumberFormatException: Not a number: single

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java.lang.NumberFormatException: Not a number: single
at oracle.xdo.rdfparser.io.Field_JaxbXducedAccessor_spacing.parse(Unknown Source)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.StructureLoader.startElement(Unknown Source)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext._startElement(Unknown Source)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallingContext.startElement(Unknown Source)
at oracle.xml.parser.v2.NonValidatingParser.parseElement(NonValidatingParser.java:1296)
at oracle.xml.parser.v2.NonValidatingParser.parseRootElement(NonValidatingParser.java:340)
at oracle.xml.parser.v2.NonValidatingParser.parseDocument(NonValidatingParser.java:307)
at oracle.xml.parser.v2.XMLParser.parse(XMLParser.java:212)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(Unknown Source)
at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(Unknown Source)
at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(Unknown Source)
at oracle.xdo.rdfparser.XPTRDFParser.parse(XPTRDFParser.java:25)
at oracle.xdo.dataengine.util.migration.XPTUtil.generateXPTLayout(XPTUtil.java:27)
at oracle.xdo.dataengine.util.migration.RDFtoPublisher11g.process(RDFtoPublisher11g.java:341)
at oracle.xdo.dataengine.util.migration.RDFtoPublisher11g.executeCommandLineArgs(RDFtoPublisher11g.java:599)
at oracle.xdo.dataengine.util.migration.RDFtoPublisher11g.main(RDFtoPublisher11g.java:667)
at oracle.xdo.dataengine.util.orconversion.OracleReportsMigrationUtil.RDFToBIPMigration(OracleReportsMigrationUtil.java:91)
at oracle.xdo.dataengine.util.orconversion.gui.ORToBIPConversionThread.run(ORToBIPConversionThread.java:95)

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