Impossibile creare "Progetto Android connesso a App Engine" in Eclipse: "Creazione dell'elemento non riuscita"

Question

Non riesco più a creare un "Progetto Android connesso a App Engine" tramite procedura guidata in Eclipse. Quando faccio clic sul pulsante "Fine", viene visualizzato il seguente messaggio di errore:

Creazione dell'elemento non riuscita.

com.android.ide.eclipse.adt.internal.project.AndroidNature.setupProjectNatures (Lorg/Eclipse/nucleo/risorse/iProject; Lorg/eclipse/core/runtime/IProgressMonitor;) V

io uso:

• Windows 7 (x64)
• Eclipse Juno 4.2
• jre7
• Google App Engine SDK 1.8.0.
• Android SDK API 8 e 17

Si tratta di una nuova installazione. Prima che la nuova installazione di Eclipse funzionasse. Ho anche inserito valori corretti per "Numero progetto" e "Chiave API".

La procedura guidata solo crea un file chiamato ".project" con i seguenti contenuti:

<?xml version="1.0" encoding="UTF-8"?> 
<projectDescription> 
    <name>Test</name> 
    <comment></comment> 
    <projects> 
    </projects> 
    <buildSpec> 
    </buildSpec> 
    <natures> 
    </natures> 
</projectDescription> 

Eccezione dello stack:

java.lang.reflect.InvocationTargetException 
    at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:421) 
    at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:1028) 
    at org.eclipse.jdt.internal.ui.wizards.NewElementWizard.performFinish(NewElementWizard.java:134) 
    at com.google.gdt.eclipse.mobile.android.wizards.NewAndroidCloudProjectWizard.performFinish(NewAndroidCloudProjectWizard.java:111) 
    at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:827) 
    at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:432) 
    at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624) 
    at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248) 
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) 
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) 
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4169) 
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3758) 
    at org.eclipse.jface.window.Window.runEventLoop(Window.java:825) 
    at org.eclipse.jface.window.Window.open(Window.java:801) 
    at org.eclipse.ui.internal.handlers.WizardHandler$New.executeHandler(WizardHandler.java:259) 
    at org.eclipse.ui.internal.handlers.WizardHandler.execute(WizardHandler.java:279) 
    at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:290) 
    at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:76) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56) 
    at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:231) 
    at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:212) 
    at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:131) 
    at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:171) 
    at org.eclipse.ui.internal.handlers.LegacyHandlerService.executeCommand(LegacyHandlerService.java:515) 
    at org.eclipse.ui.internal.actions.CommandAction.runWithEvent(CommandAction.java:157) 
    at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584) 
    at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501) 
    at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411) 
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) 
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) 
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4169) 
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3758) 
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1053) 
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) 
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:942) 
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86) 
    at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:588) 
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) 
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543) 
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) 
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124) 
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) 
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) 
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) 
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353) 
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629) 
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584) 
    at org.eclipse.equinox.launcher.Main.run(Main.java:1438) 
    at org.eclipse.equinox.launcher.Main.main(Main.java:1414) 
Caused by: java.lang.NoSuchMethodError: com.android.ide.eclipse.adt.internal.project.AndroidNature.setupProjectNatures(Lorg/eclipse/core/resources/IProject;Lorg/eclipse/core/runtime/IProgressMonitor;)V 
    at com.google.gdt.eclipse.mobile.android.wizards.helpers.AndroidProjectCreator.create(AndroidProjectCreator.java:121) 
    at com.google.gdt.eclipse.mobile.android.wizards.NewAndroidCloudProjectWizard.finishPage(NewAndroidCloudProjectWizard.java:170) 
    at org.eclipse.jdt.internal.ui.wizards.NewElementWizard$2.run(NewElementWizard.java:118) 
    at org.eclipse.jdt.internal.core.BatchOperation.executeOperation(BatchOperation.java:39) 
    at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:728) 
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344) 
    at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:5204) 
    at org.eclipse.jdt.internal.ui.actions.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:106) 
    at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121) 
Root exception: 
java.lang.NoSuchMethodError: com.android.ide.eclipse.adt.internal.project.AndroidNature.setupProjectNatures(Lorg/eclipse/core/resources/IProject;Lorg/eclipse/core/runtime/IProgressMonitor;)V 
    at com.google.gdt.eclipse.mobile.android.wizards.helpers.AndroidProjectCreator.create(AndroidProjectCreator.java:121) 
    at com.google.gdt.eclipse.mobile.android.wizards.NewAndroidCloudProjectWizard.finishPage(NewAndroidCloudProjectWizard.java:170) 
    at org.eclipse.jdt.internal.ui.wizards.NewElementWizard$2.run(NewElementWizard.java:118) 
    at org.eclipse.jdt.internal.core.BatchOperation.executeOperation(BatchOperation.java:39) 
    at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:728) 
    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344) 
    at org.eclipse.jdt.core.JavaCore.run(JavaCore.java:5204) 
    at org.eclipse.jdt.internal.ui.actions.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:106) 
    at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121) 

Session Data:

eclipse.buildId=M20130204-1200 
java.version=1.7.0 
java.vendor=Oracle Corporation 
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=de_DE 
Framework arguments: -product org.eclipse.epp.package.jee.product 
Command-line arguments: -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.jee.product 

Answer 1

ho il lo stesso problema anche. Ho aggiornato l'SDK di Android e da quel momento non sono più stato in grado di compilare il mio progetto a causa dell'errore "R non può essere risolto". Ho provato a creare un nuovo progetto connesso, ma ho ricevuto l'errore di cui stiamo parlando in questo thread.

@Gargamel: Se creo un nuovo progetto Android utilizzando la procedura guidata, viene visualizzato l'errore "R non può essere risolto".

Devo consegnare questo progetto entro 20 giorni e non funziona più. Credo che tornando alla vecchia versione dell'SDK puoi risolvere il problema, ma non ho ancora avuto l'opportunità di provare ...