I am getting the following error while performing Ant Build.
*Can someone please help me ?*
Compiling module com.acg.mmsea.gwt.Appname
[java] [WARN] Unable to read:
jar:file:/C:/gwt-2.7.0/gwt-user.jar!/com/google/gwt/core/Core.gwtar.
Skipping: java.io.InvalidClassException:
com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream
classdesc serialVersionUID = -2407201776821563037, local class
serialVersionUID = 4713379764594032837
[java] [WARN] Unable to read:
jar:file:/C:/gwt-2.7.0/gwt-user.jar!/com/google/gwt/user/User.gwtar.
Skipping: java.io.InvalidClassException:
com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream
classdesc serialVersionUID = -2407201776821563037, local class
serialVersionUID = 4713379764594032837
[java] [WARN] Unable to read:
jar:file:/C:/gwt-2.7.0/gwt-user.jar!/com/google/gwt/user/UI.gwtar.
Skipping: java.io.InvalidClassException:
com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream
classdesc serialVersionUID = -2407201776821563037, local class
serialVersionUID = 4713379764594032837
[java] [WARN] Unable to read:
jar:file:/C:/gwt-2.7.0/gwt-user.jar!/com/google/gwt/user/DOM.gwtar.
Skipping: java.io.InvalidClassException:
com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream
classdesc serialVersionUID = -2407201776821563037, local class
serialVersionUID = 4713379764594032837
[java] [WARN] Unable to read:
jar:file:/C:/gwt-2.7.0/gwt-user.jar!/com/google/gwt/user/RemoteService.gwtar.
Skipping: java.io.InvalidClassException:
com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream
classdesc serialVersionUID = -2407201776821563037, local class
serialVersionUID = 4713379764594032837
[java] [WARN] Unable to read:
jar:file:/C:/gwt-2.7.0/gwt-user.jar!/com/google/gwt/xml/XML.gwtar.
Skipping: java.io.InvalidClassException:
com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream
classdesc serialVersionUID = -2407201776821563037, local class
serialVersionUID = 4713379764594032837
[java] Ignored 2 units with compilation errors in first pass.
[ERROR] Unexpected internal compiler error
[java] java.lang.RuntimeException: Unexpected IOException on in-memory
stream
[java] at
com.google.gwt.dev.javac.CompilationUnit.getTypes(CompilationUnit.java:383)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.assimilateSourceUnit(UnifyAst.java:999)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.internalFindType(UnifyAst.java:1595)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.translate(UnifyAst.java:1653)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.translate(UnifyAst.java:1645)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.resolveType(UnifyAst.java:1552)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.assimilateSourceUnit(UnifyAst.java:1010)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.internalFindType(UnifyAst.java:1595)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.translate(UnifyAst.java:1653)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.translate(UnifyAst.java:1645)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.resolveType(UnifyAst.java:1552)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.assimilateSourceUnit(UnifyAst.java:1010)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.internalFindType(UnifyAst.java:1595)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.translate(UnifyAst.java:1653)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.translate(UnifyAst.java:1645)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.resolveType(UnifyAst.java:1552)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.assimilateSourceUnit(UnifyAst.java:1010)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.internalFindType(UnifyAst.java:1595)
[java] at
com.google.gwt.dev.jjs.impl.UnifyAst.addRootTypes(UnifyAst.java:733)
[java] at
com.google.gwt.dev.jjs.JavaToJavaScriptCompiler$Precompiler.unifyJavaAst(JavaToJavaScriptCompiler.java:1291)
[java] at
com.google.gwt.dev.jjs.JavaToJavaScriptCompiler$Precompiler.constructJavaAst(JavaToJavaScriptCompiler.java:1038)
[java] at
com.google.gwt.dev.jjs.JavaToJavaScriptCompiler$Precompiler.precompile(JavaToJavaScriptCompiler.java:954)
[java] at
com.google.gwt.dev.jjs.MonolithicJavaToJavaScriptCompiler.precompile(MonolithicJavaToJavaScriptCompiler.java:303)
[java] at
com.google.gwt.dev.jjs.JavaScriptCompiler.precompile(JavaScriptCompiler.java:38)
[java] at
com.google.gwt.dev.Precompile.precompile(Precompile.java:286)
[java] at
com.google.gwt.dev.Precompile.precompile(Precompile.java:229)
[java] at
com.google.gwt.dev.Precompile.precompile(Precompile.java:145)
[java] at com.google.gwt.dev.Compiler.run(Compiler.java:206)
[java] at com.google.gwt.dev.Compiler.run(Compiler.java:158)
[java] at com.google.gwt.dev.Compiler$1.run(Compiler.java:120)
[java] at
com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55)
[java] at
com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50)
[java] at com.google.gwt.dev.Compiler.main(Compiler.java:127)
[java] Caused by: java.io.InvalidClassException:
com.google.gwt.dev.jjs.SourceOrigin$1; local class incompatible: stream
classdesc serialVersionUID = -2407201776821563037, local class
serialVersionUID = 4713379764594032837
[java] at
java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:619)
[java] at
java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1606)
[java] at
java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1501)
[java] at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1755)
[java] at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1334)
[java] at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1976)
[java] at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
[java] at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1782)
[java] at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1334)
[java] at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1976)
[java] at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1900)
[java] at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1782)
[java] at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1334)
[java] at
java.io.ObjectInputStream.readObject(ObjectInputStream.java:353)
[java] at java.util.ArrayList.readObject(ArrayList.java:731)
[java] at sun.reflect.GeneratedMethodAccessor23.invoke(Unknown
Source)
[java] at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[java] at java.lang.reflect.Method.invoke(Method.java:600)
[java] at
java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1028)
[java] at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1878)
[java] at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1782)
[java] at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1334)
[java] at
java.io.ObjectInputStream.readObject(ObjectInputStream.java:353)
[java] at
com.google.gwt.dev.jjs.ast.JDeclaredType.readMembers(JDeclaredType.java:412)
[java] at
com.google.gwt.dev.jjs.ast.JProgram.deserializeTypes(JProgram.java:229)
[java] at
com.google.gwt.dev.javac.CompilationUnit.getTypes(CompilationUnit.java:381)
[java] ... 32 more
BUILD FAILED
C:\APPNAME WrkSpc\AppName\build.xml:65: Java returned: 1
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