I'm attempting to build the various GWTP samples with Maven and the newest release candidate and am seeing the following exception.
It looks like it has more to do with GWT than GWTP, but I thought I'd start here.
[INFO] Compiling module com.gwtplatform.samples.tab.GWTPTabsample
[INFO] [ERROR] An internal compiler exception occurred
[INFO] com.google.gwt.dev.jjs.InternalCompilerException: Unexpected error during visit.
[INFO] at com.google.gwt.dev.jjs.ast.JVisitor.translateException(JVisitor.java:109)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:276)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:265)
[INFO] at com.google.gwt.dev.jjs.ast.JVisitor.accept(JVisitor.java:116)
[INFO] at com.google.gwt.dev.jjs.ast.JDeclarationStatement.traverse(JDeclarationStatement.java:48)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor$ListContextImmutable.traverse(JModVisitor.java:170)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor.acceptWithInsertRemoveImmutable(JModVisitor.java:336)
[INFO] at com.google.gwt.dev.jjs.ast.JBlock.traverse(JBlock.java:83)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor.traverse(JModVisitor.java:361)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:273)
[INFO] at com.google.gwt.dev.jjs.ast.JVisitor.accept(JVisitor.java:137)
[INFO] at com.google.gwt.dev.jjs.ast.JVisitor.accept(JVisitor.java:133)
[INFO] at com.google.gwt.dev.jjs.ast.JMethodBody.traverse(JMethodBody.java:82)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor.traverse(JModVisitor.java:361)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:273)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:265)
[INFO] at com.google.gwt.dev.jjs.ast.JMethod.visitChildren(JMethod.java:426)
[INFO] at com.google.gwt.dev.jjs.ast.JMethod.traverse(JMethod.java:395)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor.traverse(JModVisitor.java:361)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:273)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:265)
[INFO] at com.google.gwt.dev.jjs.impl.UnifyAst.mainLoop(UnifyAst.java:902)
[INFO] at com.google.gwt.dev.jjs.impl.UnifyAst.exec(UnifyAst.java:627)
[INFO] at com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.precompile(JavaToJavaScriptCompiler.java:604)
[INFO] at com.google.gwt.dev.jjs.JavaScriptCompiler.precompile(JavaScriptCompiler.java:33)
[INFO] at com.google.gwt.dev.Precompile.precompile(Precompile.java:278)
[INFO] at com.google.gwt.dev.Precompile.precompile(Precompile.java:229)
[INFO] at com.google.gwt.dev.Precompile.precompile(Precompile.java:141)
[INFO] at com.google.gwt.dev.Compiler.run(Compiler.java:232)
[INFO] at com.google.gwt.dev.Compiler.run(Compiler.java:198)
[INFO] at com.google.gwt.dev.Compiler$1.run(Compiler.java:170)
[INFO] at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:88)
[INFO] at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:82)
[INFO] at com.google.gwt.dev.Compiler.main(Compiler.java:177)
[INFO] Caused by: java.lang.NoSuchMethodError: com.google.gwt.uibinder.rebind.FieldWriterOfGeneratedType.<init>(Lcom/google/gwt/core/ext/typeinfo/JClassType;Ljava/lang/String;Ljava/lang/String;Ljava/l
ang/String;Lcom/google/gwt/uibinder/rebind/MortalLogger;)V
[INFO] at com.google.gwt.uibinder.rebind.GinFieldManager.registerFieldOfGeneratedType(GinFieldManager.java:293)
[INFO] at com.google.gwt.uibinder.rebind.UiBinderWriter.parseDocumentElement(UiBinderWriter.java:1365)
[INFO] at com.google.gwt.uibinder.rebind.UiBinderWriter.parseDocument(UiBinderWriter.java:1075)
[INFO] at com.google.gwt.uibinder.rebind.GinUiBinderGenerator.generateOnce(GinUiBinderGenerator.java:195)
[INFO] at com.google.gwt.uibinder.rebind.GinUiBinderGenerator.generate(GinUiBinderGenerator.java:146)
[INFO] at com.google.gwt.core.ext.IncrementalGenerator.generateNonIncrementally(IncrementalGenerator.java:40)
[INFO] at com.google.gwt.dev.javac.StandardGeneratorContext.runGeneratorIncrementally(StandardGeneratorContext.java:657)
[INFO] at com.google.gwt.dev.cfg.RuleGenerateWith.realize(RuleGenerateWith.java:41)
[INFO] at com.google.gwt.dev.shell.StandardRebindOracle$Rebinder.rebind(StandardRebindOracle.java:79)
[INFO] at com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:276)
[INFO] at com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:265)
[INFO] at com.google.gwt.dev.DistillerRebindPermutationOracle.getAllPossibleRebindAnswers(DistillerRebindPermutationOracle.java:91)
[INFO] at com.google.gwt.dev.jjs.impl.UnifyAst$UnifyVisitor.handleGwtCreate(UnifyAst.java:355)
[INFO] at com.google.gwt.dev.jjs.impl.UnifyAst$UnifyVisitor.handleMagicMethodCall(UnifyAst.java:433)
[INFO] at com.google.gwt.dev.jjs.impl.UnifyAst$UnifyVisitor.endVisit(UnifyAst.java:237)
[INFO] at com.google.gwt.dev.jjs.ast.JMethodCall.traverse(JMethodCall.java:243)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor.traverse(JModVisitor.java:361)
[INFO] at com.google.gwt.dev.jjs.ast.JModVisitor.accept(JModVisitor.java:273)
[INFO] ... 32 more
[INFO] [ERROR] at ClientGinjectorImpl.java(498): GWT.create(MainPageView$Binder.class)
[INFO] com.google.gwt.dev.jjs.ast.JMethodCall
[INFO] [ERROR] at ClientGinjectorImpl.java(498): Object created = GWT.create(MainPageView$Binder.class)
[INFO] com.google.gwt.dev.jjs.ast.JDeclarationStatement
[INFO] [ERROR] at ClientGinjectorImpl.java(497): {
[INFO] Object created = GWT.create(MainPageView$Binder.class);
[INFO] assert created instanceof MainPageView$Binder;
[INFO] MainPageView$Binder result = (MainPageView$Binder) created;
[INFO] this.memberInject_Key$type$com$gwtplatform$samples$tab$client$view$MainPageView$Binder$_annotation$$none$$(result);
[INFO] return result;
[INFO] }
[INFO] com.google.gwt.dev.jjs.ast.JBlock
[INFO] [ERROR] at ClientGinjectorImpl.java(497): {
[INFO] Object created = GWT.create(MainPageView$Binder.class);
[INFO] assert created instanceof MainPageView$Binder;
[INFO] MainPageView$Binder result = (MainPageView$Binder) created;
[INFO] this.memberInject_Key$type$com$gwtplatform$samples$tab$client$view$MainPageView$Binder$_annotation$$none$$(result);
[INFO] return result;
[INFO] }
[INFO] com.google.gwt.dev.jjs.ast.JMethodBody
[INFO] [ERROR] at ClientGinjectorImpl.java(497): private MainPageView$Binder create_Key$type$com$gwtplatform$samples$tab$client$view$MainPageView$Binder$_annotation$$none$$();
[INFO]
[INFO] com.google.gwt.dev.jjs.ast.JMethod
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 24.008s