Error compiling GWT application in Eclipse

[mabebe]

Please help...i keep getting this error when trying to build a GWT
project in eclipse.

Apr 18, 2009 11:04:55 PM org.datanucleus.enhancer.DataNucleusEnhancer
addMessage
SEVERE: An error occured for ClassEnhancer "ASM" when trying to call
the method "org.datanucleus.enhancer.asm.ASMClassEnhancer" on class
"getClassNameForFileName" : org.objectweb.asm.ClassReader.accept(Lorg/
objectweb/asm/ClassVisitor;I)V
java.lang.NoSuchMethodError: org.objectweb.asm.ClassReader.accept(Lorg/
objectweb/asm/ClassVisitor;I)V
at
org.datanucleus.enhancer.asm.ASMClassEnhancer.getClassNameForFileName
(ASMClassEnhancer.java:154)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.datanucleus.enhancer.DataNucleusEnhancer.getClassNameForFilename
(DataNucleusEnhancer.java:900)
at
org.datanucleus.enhancer.DataNucleusEnhancer.getFileMetadataForInput
(DataNucleusEnhancer.java:716)
at org.datanucleus.enhancer.DataNucleusEnhancer.enhance
(DataNucleusEnhancer.java:525)
at org.datanucleus.enhancer.DataNucleusEnhancer.main
(DataNucleusEnhancer.java:1235)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.appengine.tools.enhancer.Enhancer.execute(Enhancer.java:
57)
at com.google.appengine.tools.enhancer.Enhance.<init>(Enhance.java:
60)
at com.google.appengine.tools.enhancer.Enhance.main(Enhance.java:41)
.
An error occured for ClassEnhancer "ASM" when trying to call the
method "org.datanucleus.enhancer.asm.ASMClassEnhancer" on class
"getClassNameForFileName" : org.objectweb.asm.ClassReader.accept(Lorg/
objectweb/asm/ClassVisitor;I)V
java.lang.NoSuchMethodError: org.objectweb.asm.ClassReader.accept(Lorg/
objectweb/asm/ClassVisitor;I)V
at
org.datanucleus.enhancer.asm.ASMClassEnhancer.getClassNameForFileName
(ASMClassEnhancer.java:154)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.datanucleus.enhancer.DataNucleusEnhancer.getClassNameForFilename
(DataNucleusEnhancer.java:900)
at
org.datanucleus.enhancer.DataNucleusEnhancer.getFileMetadataForInput
(DataNucleusEnhancer.java:716)
at org.datanucleus.enhancer.DataNucleusEnhancer.enhance
(DataNucleusEnhancer.java:525)
at org.datanucleus.enhancer.DataNucleusEnhancer.main
(DataNucleusEnhancer.java:1235)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.appengine.tools.enhancer.Enhancer.execute(Enhancer.java:
57)
at com.google.appengine.tools.enhancer.Enhance.<init>(Enhance.java:
60)
at com.google.appengine.tools.enhancer.Enhance.main(Enhance.java:41)

[Salvador Diaz]

That's an appengine error, are you sure you want yo use the app engine
sdk in your application ? If you do, try asking your question here:
http://groups.google.com/group/google-appengine

Cheers,

Salvador

[mabebe]

Thanks salvador...

[mabebe]

I have another build error..do you know the problem....i removed the
app engine from the build path already....

Loading module 'com.personalsite.Personalsite'
[ERROR] Failure while parsing XML
org.xml.sax.SAXNotRecognizedException: Feature:
http://apache.org/xml/features/nonvalidating/load-external-dtd
at org.apache.crimson.parser.XMLReaderImpl.setFeature
(XMLReaderImpl.java:213)
at org.apache.crimson.jaxp.SAXParserImpl.setFeatures
(SAXParserImpl.java:143)
at org.apache.crimson.jaxp.SAXParserImpl.<init>(SAXParserImpl.java:
126)
at org.apache.crimson.jaxp.SAXParserFactoryImpl.newSAXParserImpl
(SAXParserFactoryImpl.java:113)
at org.apache.crimson.jaxp.SAXParserFactoryImpl.setFeature
(SAXParserFactoryImpl.java:141)
at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.parse
(ReflectiveParser.java:307)
at com.google.gwt.dev.util.xml.ReflectiveParser$Impl.access$100
(ReflectiveParser.java:48)
at com.google.gwt.dev.util.xml.ReflectiveParser.parse
(ReflectiveParser.java:385)
at com.google.gwt.dev.cfg.ModuleDefLoader.nestedLoad
(ModuleDefLoader.java:243)
at com.google.gwt.dev.cfg.ModuleDefLoader$1.load(ModuleDefLoader.java:
155)
at com.google.gwt.dev.cfg.ModuleDefLoader.doLoadModule
(ModuleDefLoader.java:269)
at com.google.gwt.dev.cfg.ModuleDefLoader.loadFromClassPath
(ModuleDefLoader.java:127)
at com.google.gwt.dev.Compiler.run(Compiler.java:156)
at com.google.gwt.dev.Compiler$1.run(Compiler.java:124)
at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:
84)
at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger
(CompileTaskRunner.java:78)
at com.google.gwt.dev.Compiler.main(Compiler.java:131)

On Apr 19, 5:16 am, Salvador Diaz <diaz.salva...@gmail.com> wrote:

[mabebe]

added xceres jar to my jdk jre/lib/ext folder...it works like a
charm...thanks..