eclipse的一个问题

Question

把eclipse安装目录下的，configuration文件夹下的文件都删除了，除了config配置文件没删，然后重启eclipse，却报错了，报错如下：java.lang.IllegalStateException
at org.eclipse.core.runtime.Platform.getPlugin(Platform.java:732)
at org.eclipse.core.internal.preferences.legacy.InitLegacyPreferences.init(InitLegacyPreferences.java:43)
at org.eclipse.core.internal.preferences.PreferenceServiceRegistryHelper.applyRuntimeDefaults(PreferenceServiceRegistryHelper.java:146)
at org.eclipse.core.internal.preferences.PreferencesService.applyRuntimeDefaults(PreferencesService.java:344)
at org.eclipse.core.internal.preferences.DefaultPreferences.applyRuntimeDefaults(DefaultPreferences.java:163)
at org.eclipse.core.internal.preferences.DefaultPreferences.loadDefaults(DefaultPreferences.java:236)
at org.eclipse.core.internal.preferences.DefaultPreferences.load(DefaultPreferences.java:232)
at org.eclipse.core.internal.preferences.EclipsePreferences.create(EclipsePreferences.java:307)
at org.eclipse.core.internal.preferences.EclipsePreferences.internalNode(EclipsePreferences.java:543)
at org.eclipse.core.internal.preferences.DefaultPreferences.node(DefaultPreferences.java:150)
at org.eclipse.core.internal.preferences.legacy.PreferenceForwarder.getDefaultPreferences(PreferenceForwarder.java:130)
at org.eclipse.core.internal.preferences.legacy.PreferenceForwarder.getString(PreferenceForwarder.java:636)
at org.eclipse.ui.internal.navigator.NavigatorActivationService.revertExtensionActivations(NavigatorActivationService.java:269)
at org.eclipse.ui.internal.navigator.NavigatorActivationService.<init>(NavigatorActivationService.java:82)
at org.eclipse.ui.internal.navigator.NavigatorContentService.getActivationService(NavigatorContentService.java:1029)
at org.eclipse.ui.internal.navigator.NavigatorContentService.<init>(NavigatorContentService.java:143)
at org.eclipse.ui.internal.navigator.NavigatorContentService.<init>(NavigatorContentService.java:155)
at org.eclipse.ui.navigator.CommonViewer.<init>(CommonViewer.java:82)
at org.eclipse.ui.navigator.CommonNavigator.createCommonViewer(CommonNavigator.java:405)
at org.eclipse.ui.navigator.CommonNavigator.createPartControl(CommonNavigator.java:157)
at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:370)
at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:227)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:592)
at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:299)
at org.eclipse.ui.internal.ViewPane.setVisible(ViewPane.java:531)
at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:179)
at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:268)
at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:400)
at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1256)
at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1209)
at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1604)
at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:649)
at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:576)
at org.eclipse.ui.internal.PartSashContainer.createControl(PartSashContainer.java:564)
at org.eclipse.ui.internal.PerspectiveHelper.activate(PerspectiveHelper.java:270)
at org.eclipse.ui.internal.Perspective.onActivate(Perspective.java:931)
at org.eclipse.ui.internal.WorkbenchPage.onActivate(WorkbenchPage.java:2515)
at org.eclipse.ui.internal.WorkbenchWindow$23.run(WorkbenchWindow.java:2837)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
at org.eclipse.ui.internal.WorkbenchWindow.setActivePage(WorkbenchWindow.java:2818)
at org.eclipse.ui.internal.WorkbenchWindow.busyOpenPage(WorkbenchWindow.java:735)
at org.eclipse.ui.internal.Workbench$20.runWithException(Workbench.java:1023)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:129)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3659)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3296)
at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:801)
at org.eclipse.ui.internal.Workbench$25.runWithException(Workbench.java:1342)
at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:129)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3659)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3296)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2309)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
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:324)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
请问，该怎么办呀，这是什么问题呀？

Answer 1

再把文件还原回来就是了
你要删 你删.setting就行了

Answer 2

现在eclipse大家都用非安装模式了吧，便于以后安装了一大堆的插件打个包就解压就可以直接用，lz再重新解压下不就行了吗，把你现在的删掉重新弄。

Answer 3

configurations 下面那个 ...osgi.... 下面的删除就够了吧。
我每次只删除那 osgi 下面的缓存。
再启动它就会重新解析和初始化这些插件。

Answer 4

如果你删除之前没报错，删除之后报错，那么还原。还原不好使的话，就把错误的地方重写，并用ctrl+1来进行修改。myeclipse会有各种各样的bug，有些时候代码是正确的，但是却要重写下才能不报错。
如果还不行，就把项目发上来，在我的机器上运行下给你改改，或者在我机器上重新编译，我把好使的项目源码发给你。

Answer 5

我自己已经解决了，问题的原因都不是你们说的。是JDK版本的问题。