無法在Eclipse中創建python視圖

Question

我已將PyDev插件安裝到Eclipse。當我創建新的Python項目時，我必須切換到Python視圖。不幸的是我收到這樣的信息：

Could not create the view: An unexpected exception was thrown. 
java.lang.RuntimeException: Can't find id: org.eclipse.jst.servlet.ui.EnhancedJavaRendering 
    at org.eclipse.ui.internal.navigator.extensions.NavigatorContentDescriptorManager.findId(NavigatorContentDescriptorManager.java:459) 
    at org.eclipse.ui.internal.navigator.extensions.NavigatorContentDescriptorManager.computeSequenceNumbers(NavigatorContentDescriptorManager.java:476) 
    at org.eclipse.ui.internal.navigator.extensions.NavigatorContentDescriptorManager.access$0(NavigatorContentDescriptorManager.java:462) 
    at org.eclipse.ui.internal.navigator.extensions.NavigatorContentDescriptorManager$NavigatorContentDescriptorRegistry.readRegistry(NavigatorContentDescriptorManager.java:512) 
    at org.eclipse.ui.internal.navigator.extensions.NavigatorContentDescriptorManager.<init>(NavigatorContentDescriptorManager.java:130) 
    at org.eclipse.ui.internal.navigator.extensions.NavigatorContentDescriptorManager.<clinit>(NavigatorContentDescriptorManager.java:44) 
    at org.eclipse.ui.internal.navigator.NavigatorContentService.<clinit>(NavigatorContentService.java:93) 
    at org.eclipse.ui.navigator.CommonViewer.<init>(CommonViewer.java:96) 
    at org.python.pydev.navigator.ui.PydevPackageExplorer$PydevCommonViewer.<init>(PydevPackageExplorer.java:77) 
    at org.python.pydev.navigator.ui.PydevPackageExplorer.createCommonViewer(PydevPackageExplorer.java:174) 
    at org.eclipse.ui.navigator.CommonNavigator.createPartControl(CommonNavigator.java:193) 
    at org.python.pydev.navigator.ui.PydevPackageExplorer.createPartControl(PydevPackageExplorer.java:188) 
    at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:375) 
    at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:229) 
    at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595) 
    at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:313) 
    at org.eclipse.ui.internal.ViewPane.setVisible(ViewPane.java:534) 
    at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:180) 
    at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:270) 
    at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65) 
    at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:473) 
    at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1245) 
    at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1198) 
    at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1597) 
    at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:643) 
    at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:570) 
    at org.eclipse.ui.internal.PartSashContainer.createControl(PartSashContainer.java:568) 
    at org.eclipse.ui.internal.PerspectiveHelper.activate(PerspectiveHelper.java:272) 
    at org.eclipse.ui.internal.Perspective.onActivate(Perspective.java:981) 
    at org.eclipse.ui.internal.WorkbenchPage.setPerspective(WorkbenchPage.java:3713) 
    at org.eclipse.ui.internal.WorkbenchPage.busyResetPerspective(WorkbenchPage.java:1046) 
    at org.eclipse.ui.internal.WorkbenchPage.access$13(WorkbenchPage.java:950) 
    at org.eclipse.ui.internal.WorkbenchPage$14.run(WorkbenchPage.java:3175) 
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) 
    at org.eclipse.ui.internal.WorkbenchPage.resetPerspective(WorkbenchPage.java:3173) 
    at org.eclipse.ui.internal.handlers.ResetPerspectiveHandler.execute(ResetPerspectiveHandler.java:84) 
    at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293) 
    at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) 
    at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508) 
    at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169) 
    at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241) 
    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:4165) 
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754) 
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696) 
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660) 
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494) 
    at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674) 
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) 
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667) 
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) 
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123) 
    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:344) 
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) 
    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:622) 
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577) 
    at org.eclipse.equinox.launcher.Main.run(Main.java:1410) 

如何處理？

Answer 1

雖然你在啓動PyDev包資源管理器時遇到了問題，但真正的問題是另一個插件 - 它找不到org.eclipse.jst.servlet.ui.EnhancedJavaRendering，所以我猜測它是webtools安裝中的一些問題。

Answer 2

當我得到新版本的Pydev時，我遇到了同樣的問題。我去了pydev.org installation instructions，發現現在需要Java 7。一旦我升級了Java並確保Eclipse使用新版本，問題就解決了。

Answer 3

我遲到了這個問題，但我確實設法找出答案。儘管您可能擁有Java 1.7 JRE，但您需要安裝1.7 JDK。確保Eclipse知道首選項>已安裝的JRE中的更新。如果只看到Java SE 6並且確實安裝了Java SE 7，請單擊搜索。確保選中了7。您可以在關於Eclipse>安裝詳細信息（按鈕）>配置（選項卡）下查找，然後查找-vm之後的行，從而確保使用1.7。

我也不得不擺弄〜/ workspace下的.metadata文件夾和文件，以使Eclipse中的Pydev Package Explorer窗格正確顯示。