今天早上打开MyEclipse时，自动关闭！弹出An error has occurred.See the log file错误提示！
很郁闷昨天启动和关闭还好着！！！打开几次依然报此错误，确定不是眼花了！
打开日志文件！找到当日错误文件内容：
------------------------------------------------------------------------------------------------------------------------------!SESSION 2009-07-28 08:54:11.640 -----------------------------------------------eclipse.buildId=M20060921-0945java.version=1.5.0_04java.vendor=Sun Microsystems Inc.BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=zh_CNCommand-line arguments: -os win32 -ws win32 -arch x86 !ENTRY org.eclipse.ui.workbench 4 0 2009-07-28 08:54:53.453!MESSAGE An unexpected exception was thrown.!STACK 0java.lang.NullPointerException at org.eclipse.debug.internal.ui.viewers.update.LaunchManagerProxy.dispose(LaunchManagerProxy.java:51) at org.eclipse.debug.internal.ui.viewers.AsynchronousModel.disposeAllModelProxies(AsynchronousModel.java:227) at org.eclipse.debug.internal.ui.viewers.AsynchronousModel.dispose(AsynchronousModel.java:147) at org.eclipse.debug.internal.ui.viewers.AsynchronousViewer.dispose(AsynchronousViewer.java:188) at org.eclipse.debug.internal.ui.viewers.AsynchronousTreeViewer.dispose(AsynchronousTreeViewer.java:505) at org.eclipse.debug.internal.ui.views.launch.LaunchView.dispose(LaunchView.java:478) at org.eclipse.ui.internal.WorkbenchPartReference.doDisposePart(WorkbenchPartReference.java:687) at org.eclipse.ui.internal.ViewReference.doDisposePart(ViewReference.java:97) at org.eclipse.ui.internal.WorkbenchPartReference.dispose(WorkbenchPartReference.java:642) at org.eclipse.ui.internal.WorkbenchPage$5.run(WorkbenchPage.java:1622) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.core.runtime.Platform.run(Platform.java:843) at org.eclipse.ui.internal.WorkbenchPage.dispose(WorkbenchPage.java:1617) at org.eclipse.ui.internal.WorkbenchWindow.closeAllPages(WorkbenchWindow.java:748) at org.eclipse.ui.internal.WorkbenchWindow.hardClose(WorkbenchWindow.java:1486) at org.eclipse.ui.internal.WorkbenchWindow.busyClose(WorkbenchWindow.java:622) at org.eclipse.ui.internal.WorkbenchWindow.access$0(WorkbenchWindow.java:598) at org.eclipse.ui.internal.WorkbenchWindow$2.run(WorkbenchWindow.java:713) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67) at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:711) at org.eclipse.ui.internal.Workbench.openWindowsAfterRestore(Workbench.java:2906) at org.eclipse.ui.internal.Workbench.restoreState(Workbench.java:1702) at org.eclipse.ui.internal.Workbench.access$12(Workbench.java:1666) at org.eclipse.ui.internal.Workbench$18.run(Workbench.java:1545) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.ui.internal.Workbench.restoreState(Workbench.java:1489) at org.eclipse.ui.internal.WorkbenchConfigurer.restoreState(WorkbenchConfigurer.java:183) at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:702) at org.eclipse.ui.internal.Workbench.init(Workbench.java:1101) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1863) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:422) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:95) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177) 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:585) at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336) at org.eclipse.core.launcher.Main.basicRun(Main.java:280) at org.eclipse.core.launcher.Main.run(Main.java:977) at org.eclipse.core.launcher.Main.main(Main.java:952) !ENTRY org.eclipse.osgi 4 0 2009-07-28 08:54:53.765!MESSAGE Application error!STACK 1org.eclipse.swt.SWTError: No more handles at org.eclipse.swt.SWT.error(SWT.java:3400) at org.eclipse.swt.SWT.error(SWT.java:3297) at org.eclipse.swt.SWT.error(SWT.java:3268) at org.eclipse.swt.widgets.Widget.error(Widget.java:435) at org.eclipse.swt.widgets.Control.createHandle(Control.java:508) at org.eclipse.swt.widgets.Sash.createHandle(Sash.java:114) at org.eclipse.swt.widgets.Control.createWidget(Control.java:523) at org.eclipse.swt.widgets.Control.<init>(Control.java:98) at org.eclipse.swt.widgets.Sash.<init>(Sash.java:72) at org.eclipse.swt.custom.SashFormLayout.layout(SashFormLayout.java:115) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:989) at org.eclipse.swt.widgets.Composite.WM_SIZE(Composite.java:1386) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3317) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1927) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:77) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3334) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.EndDeferWindowPos(Native Method) at org.eclipse.swt.widgets.Composite.resizeChildren(Composite.java:703) at org.eclipse.swt.widgets.Composite.resizeChildren(Composite.java:669) at org.eclipse.swt.widgets.Composite.setResizeChildren(Composite.java:875) at org.eclipse.swt.widgets.Composite.WM_SIZE(Composite.java:1390) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3317) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1927) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:77) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3334) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.SetWindowPos(Native Method) at org.eclipse.swt.widgets.Widget.SetWindowPos(Widget.java:1225) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2133) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2115) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2111) at org.eclipse.swt.layout.FillLayout.layout(FillLayout.java:198) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:989) at org.eclipse.swt.widgets.Composite.WM_SIZE(Composite.java:1386) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3317) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1927) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:77) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3334) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.SetWindowPos(Native Method) at org.eclipse.swt.widgets.Widget.SetWindowPos(Widget.java:1225) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2133) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2115) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2111) at org.eclipse.swt.layout.FillLayout.layout(FillLayout.java:198) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:989) at org.eclipse.swt.widgets.Composite.WM_SIZE(Composite.java:1386) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3317) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1927) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:77) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3334) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.SetWindowPos(Native Method) at org.eclipse.swt.widgets.Widget.SetWindowPos(Widget.java:1225) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2133) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2115) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2111) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2180) at org.eclipse.ui.internal.LayoutPart.setBounds(LayoutPart.java:300) at org.eclipse.ui.internal.presentations.PresentablePart.setBounds(PresentablePart.java:130) at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.layoutContent(PresentablePartFolder.java:129) at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.access$0(PresentablePartFolder.java:125) at org.eclipse.ui.internal.presentations.util.PresentablePartFolder$1.controlMoved(PresentablePartFolder.java:54) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:153) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:928) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:952) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:933) at org.eclipse.swt.widgets.Control.WM_MOVE(Control.java:3760) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3292) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1927) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:77) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3334) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.EndDeferWindowPos(Native Method) at org.eclipse.swt.widgets.Composite.resizeChildren(Composite.java:703) at org.eclipse.swt.widgets.Composite.resizeChildren(Composite.java:669) at org.eclipse.swt.widgets.Composite.setResizeChildren(Composite.java:875) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:990) at org.eclipse.swt.widgets.Composite.setLayoutDeferred(Composite.java:835) at org.eclipse.ui.internal.presentations.PaneFolder.layout(PaneFolder.java:505) at org.eclipse.ui.internal.presentations.PaneFolder$5.controlResized(PaneFolder.java:246) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:149) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:928) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:952) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:933) at org.eclipse.swt.widgets.Control.WM_SIZE(Control.java:3880) at org.eclipse.swt.widgets.Scrollable.WM_SIZE(Scrollable.java:333) at org.eclipse.swt.widgets.Composite.WM_SIZE(Composite.java:1375) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3317) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1927) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:77) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3334) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.EndDeferWindowPos(Native Method) at org.eclipse.swt.widgets.Composite.resizeChildren(Composite.java:703) at org.eclipse.swt.widgets.Composite.resizeChildren(Composite.java:669) at org.eclipse.swt.widgets.Composite.setResizeChildren(Composite.java:875) at org.eclipse.swt.widgets.Composite.WM_SIZE(Composite.java:1390) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3317) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1927) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:77) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3334) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.SetWindowPos(Native Method) at org.eclipse.swt.widgets.Widget.SetWindowPos(Widget.java:1225) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2133) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2115) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2111) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2180) at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.setBounds(PresentablePartFolder.java:256) at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.setBounds(TabbedStackPresentation.java:213) at org.eclipse.ui.internal.PartStack.setBounds(PartStack.java:1086) at org.eclipse.ui.internal.LayoutTree.doSetBounds(LayoutTree.java:547) at org.eclipse.ui.internal.LayoutTree.setBounds(LayoutTree.java:538) at org.eclipse.ui.internal.LayoutTreeNode.doSetBounds(LayoutTreeNode.java:535) at org.eclipse.ui.internal.LayoutTree.setBounds(LayoutTree.java:538) at org.eclipse.ui.internal.LayoutTreeNode.doSetBounds(LayoutTreeNode.java:534) at org.eclipse.ui.internal.LayoutTree.setBounds(LayoutTree.java:538) at org.eclipse.ui.internal.LayoutTreeNode.doSetBounds(LayoutTreeNode.java:503) at org.eclipse.ui.internal.LayoutTree.setBounds(LayoutTree.java:538) at org.eclipse.ui.internal.LayoutTreeNode.doSetBounds(LayoutTreeNode.java:503) at org.eclipse.ui.internal.LayoutTree.setBounds(LayoutTree.java:538) at org.eclipse.ui.internal.PartSashContainer.resizeSashes(PartSashContainer.java:805) at org.eclipse.ui.internal.PartSashContainer.access$1(PartSashContainer.java:795) at org.eclipse.ui.internal.PartSashContainer$1.controlResized(PartSashContainer.java:169) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:149) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:928) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:952) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:933) at org.eclipse.swt.widgets.Control.WM_SIZE(Control.java:3880) at org.eclipse.swt.widgets.Scrollable.WM_SIZE(Scrollable.java:333) at org.eclipse.swt.widgets.Composite.WM_SIZE(Composite.java:1375) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3317) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1927) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:77) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3334) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.SetWindowPos(Native Method) at org.eclipse.swt.widgets.Widget.SetWindowPos(Widget.java:1225) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2133) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2115) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2111) at org.eclipse.swt.widgets.Control.setBounds(Control.java:2180) at org.eclipse.swt.custom.StackLayout.layout(StackLayout.java:116) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:989) at org.eclipse.swt.widgets.Composite.WM_SIZE(Composite.java:1386) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3317) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1927) at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:77) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3334) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.EndDeferWindowPos(Native Method) at org.eclipse.swt.widgets.Composite.resizeChildren(Composite.java:703) at org.eclipse.swt.widgets.Composite.resizeChildren(Composite.java:669) at org.eclipse.swt.widgets.Composite.setResizeChildren(Composite.java:875) at org.eclipse.swt.widgets.Composite.WM_SIZE(Composite.java:1390) at org.eclipse.swt.widgets.Canvas.WM_SIZE(Canvas.java:303) at org.eclipse.swt.widgets.Decorations.WM_SIZE(Decorations.java:1718) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3317) at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1539) at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:1634) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:1927) at org.eclipse.swt.widgets.Shell.callWindowProc(Shell.java:443) at org.eclipse.swt.widgets.Control.windowProc(Control.java:3334) at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1539) at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:1634) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4025) at org.eclipse.swt.internal.win32.OS.ShowWindow(Native Method) at org.eclipse.swt.widgets.Decorations.setVisible(Decorations.java:1332) at org.eclipse.swt.widgets.Shell.setVisible(Shell.java:1481) at org.eclipse.swt.widgets.Shell.open(Shell.java:1008) at org.eclipse.jface.window.Window.open(Window.java:792) at org.eclipse.ui.internal.WorkbenchWindow.open(WorkbenchWindow.java:677) at org.eclipse.ui.internal.Workbench.openWindowsAfterRestore(Workbench.java:2902) at org.eclipse.ui.internal.Workbench.restoreState(Workbench.java:1702) at org.eclipse.ui.internal.Workbench.access$12(Workbench.java:1666) at org.eclipse.ui.internal.Workbench$18.run(Workbench.java:1545) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.ui.internal.Workbench.restoreState(Workbench.java:1489) at org.eclipse.ui.internal.WorkbenchConfigurer.restoreState(WorkbenchConfigurer.java:183) at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:702) at org.eclipse.ui.internal.Workbench.init(Workbench.java:1101) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1863) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:422) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:95) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177) 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:585) at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336) at org.eclipse.core.launcher.Main.basicRun(Main.java:280) at org.eclipse.core.launcher.Main.run(Main.java:977) at org.eclipse.core.launcher.Main.main(Main.java:952)
?网上找了下：
?第一：金山升级修改了内存！（我金山昨天是升级了金山，但是那帖子是08年1月的。我想要是有这个bug，金山早改了。况且那个帖子也是个太监贴，没下文！不想费时间在金山的装卸载上）
第二：项目目录中有中文。（我项目路径中是有中文，但是我已经用了十几天了，没有事！今天出现了也不会是这个问题。）
第三：删除掉那个。Log文件（删除掉依然不起作用）
。。。。。。。。。。。。。。。还有一些乱七八糟的,就不说了！前面这三个网上常见！
?
解决：修改项目工作空间。
修改工作空间，以前打开myEclipse时知道怎么改！现在只有找配置文件了！
步骤：
?MyEclipse 5.1.1 GA-----》Eclipse-----》configuration------》.settings----》org.eclipse.ui.ide.prefs文件
#Tue Jul 28 09:10:40 CST 2009
RECENT_WORKSPACES_PROTOCOL=2
MAX_RECENT_WORKSPACES=5
SHOW_WORKSPACE_SELECTION_DIALOG=false
eclipse.preferences.version=1
RECENT_WORKSPACES=D\:\\caodf,C\:\\Documents and Settings\\Administrator\\workspace
删除掉你以前的工作路径！保存！关闭！重启MyEclipse就好了！