ERROR - The value ie10 was not previously defined

Error: The value IE6 / IE10 was not previously defined error we will get while trying to build the GWT application with different set of jar versions. There is also the sub exception while processing element 'set-property'.

Loading inherited module 'com.sencha.gxt.ui.GXT'
     [java]    Loading inherited module 'com.sencha.gxt.data.Data'
     [java]       Loading inherited module 'com.sencha.gxt.core.Core'
     [java]          [ERROR] The value ie10 was not previously defined.
     [java]          [ERROR] Line 76: Unexpected exception while processing element 'set-property'
     [java] com.google.gwt.core.ext.UnableToCompleteException: (see previous log entries)
     [java]  at com.google.gwt.dev.cfg.ModuleDefSchema$BodySchema.__set_property_end(ModuleDefSchema.java:669)
     [java]  at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
     [java]  at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     [java]  at java.lang.reflect.Method.invoke(Unknown Source)
     [java]  at com.google.gwt.dev.util.xml.HandlerMethod.invokeEnd(HandlerMethod.java:272)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.endElement(ReflectiveParser.java:172)
     [java]  at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.parse(ReflectiveParser.java:347)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.access$200(ReflectiveParser.java:68)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser.parse(ReflectiveParser.java:418)
     [java]  at com.google.gwt.dev.cfg.ModuleDefLoader.nestedLoad(ModuleDefLoader.java:296)
     [java]  at com.google.gwt.dev.cfg.ModuleDefSchema$BodySchema.__inherits_begin(ModuleDefSchema.java:495)
     [java]  at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
     [java]  at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     [java]  at java.lang.reflect.Method.invoke(Unknown Source)
     [java]  at com.google.gwt.dev.util.xml.HandlerMethod.invokeBegin(HandlerMethod.java:230)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.startElement(ReflectiveParser.java:294)
     [java]  at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.parse(ReflectiveParser.java:347)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.access$200(ReflectiveParser.java:68)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser.parse(ReflectiveParser.java:418)
     [java]  at com.google.gwt.dev.cfg.ModuleDefLoader.nestedLoad(ModuleDefLoader.java:296)
     [java]  at com.google.gwt.dev.cfg.ModuleDefSchema$BodySchema.__inherits_begin(ModuleDefSchema.java:495)
     [java]  at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
     [java]  at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     [java]  at java.lang.reflect.Method.invoke(Unknown Source)
     [java]  at com.google.gwt.dev.util.xml.HandlerMethod.invokeBegin(HandlerMethod.java:230)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.startElement(ReflectiveParser.java:294)
     [java]  at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.parse(ReflectiveParser.java:347)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.access$200(ReflectiveParser.java:68)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser.parse(ReflectiveParser.java:418)
     [java]  at com.google.gwt.dev.cfg.ModuleDefLoader.nestedLoad(ModuleDefLoader.java:296)
     [java]  at com.google.gwt.dev.cfg.ModuleDefSchema$BodySchema.__inherits_begin(ModuleDefSchema.java:495)
     [java]  at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
     [java]  at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     [java]  at java.lang.reflect.Method.invoke(Unknown Source)
     [java]  at com.google.gwt.dev.util.xml.HandlerMethod.invokeBegin(HandlerMethod.java:230)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.startElement(ReflectiveParser.java:294)
     [java]  at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
     [java]  at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.parse(ReflectiveParser.java:347)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.access$200(ReflectiveParser.java:68)
     [java]  at com.google.gwt.dev.util.xml.ReflectiveParser.parse(ReflectiveParser.java:418)
     [java]  at com.google.gwt.dev.cfg.ModuleDefLoader.nestedLoad(ModuleDefLoader.java:296)
     [java]  at com.google.gwt.dev.cfg.ModuleDefLoader$1.load(ModuleDefLoader.java:198)
     [java]  at com.google.gwt.dev.cfg.ModuleDefLoader.doLoadModule(ModuleDefLoader.java:324)
     [java]  at com.google.gwt.dev.cfg.ModuleDefLoader.loadFromClassPath(ModuleDefLoader.java:156)
     [java]  at com.google.gwt.dev.Compiler.run(Compiler.java:196)
     [java]  at com.google.gwt.dev.Compiler$1.run(Compiler.java:170)
     [java]  at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:88)
     [java]  at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:82)
     [java]  at com.google.gwt.dev.Compiler.main(Compiler.java:177)
     [java]          [ERROR] Failure while parsing XML
Answer:
  • This is most commonly getting exception because of mismatching the JAR's version.
  • It could be a reason for getting such kind of exceptions are where you are trying with incompatible GXT-Version.jar
  • Make sure you have placed all the GWT dependencies jars are correct in build path/lib.
  • If you are using GWT-2.5 or higher version you should use GXT-3.1.0 or higher version to compatible with GWT.
  • From GWT-2.5.1 onwards GWT applications are not compatible with IE-5/6/7 versions.
Note: For more clarification Click Here
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