首先，我在 GitHub 中创建了一个项目，使用 Egit 将其导入到 Eclipse (kepler) 中，并使其成为一个 JavaScript 项目（使用标准 javascript 插件）。我在这个项目中工作没问题。我将整个项目（包括 .project 文件等）推送到了 GitHub。
现在，当我在另一台计算机上导入这个项目时，事情变得很奇怪。我使用 Egit 从 GitHub 存储库中导入了它。然后我将导入用作现有项目，因为我用它上传了所有项目文件。现在这很好用，直到我想创建一个新的 JavaScript 文件。
当我这样做时，新的创建一个新的 JavaScript 文件。窗口出现，但是当我输入名称时，完成按钮保持禁用状态。此外，当我单击其中一个父文件夹时，我得到一个空指针异常：
谁能告诉我我在这里做错了什么？这是一个错误吗？我不能只在不同的电脑上导入其他项目吗？还是 git 出了什么问题？
这是错误日志：
从插件调用代码时出现问题：“org.eclipse.jface”。
java.lang.NullPointerException
at org.eclipse.wst.jsdt.internal.ui.wizards.NewJSFileWizardPage.validatePage(NewJSFileWizardPage.java:122)
at org.eclipse.ui.dialogs.WizardNewFileCreationPage.handleEvent(WizardNewFileCreationPage.java:676)
at org.eclipse.ui.internal.ide.misc.ResourceAndContainerGroup.handleEvent(ResourceAndContainerGroup.java:367)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1081)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062)
at org.eclipse.swt.widgets.Text.wmCommandChild(Text.java:2974)
at org.eclipse.swt.widgets.Control.WM_COMMAND(Control.java:4752)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4614)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4977)
at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:2443)
at org.eclipse.swt.widgets.Text.callWindowProc(Text.java:260)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4706)
at org.eclipse.swt.widgets.Text.windowProc(Text.java:2597)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4977)
at org.eclipse.swt.internal.win32.OS.SetWindowTextW(Native Method)
at org.eclipse.swt.internal.win32.OS.SetWindowText(OS.java:3473)
at org.eclipse.swt.widgets.Text.setText(Text.java:2252)
at org.eclipse.ui.internal.ide.misc.ContainerSelectionGroup.containerSelectionChanged(ContainerSelectionGroup.java:190)
at org.eclipse.ui.internal.ide.misc.ContainerSelectionGroup$1.selectionChanged(ContainerSelectionGroup.java:276)
at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:164)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:162)
at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2188)
at org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:1211)
at org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:1241)
at org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:239)
at org.eclipse.jface.util.OpenStrategy.access$4(OpenStrategy.java:233)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:403)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4170)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3759)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:826)
at org.eclipse.jface.window.Window.open(Window.java:802)
at org.eclipse.ui.internal.actions.NewWizardShortcutAction.run(NewWizardShortcutAction.java:135)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:499)
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:1057)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4170)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3759)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
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:354)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
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:636)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
at org.eclipse.equinox.launcher.Main.main(Main.java:1426)