试图了解 ejabberd 的工作原理。
我在导入源代码时遇到了一些问题。如果您能帮助解决问题，那将是非常有帮助的。
以下是问题：
我安装 eclipse Juno，从 eclipse 市场安装 erlide。按照此处的说明设置已安装的运行时。
但是，当我使用文件菜单中的导入选项中的 erlang 项目导入 ejabberd 源代码时，出现以下错误：
发生了错误。有关详细信息，请参阅错误日志。java.lang.NullPointerException
在错误日志中，最后两行是：
12:15:01,556 F: (CodeManager.java:222) : 添加 D:/Eclipse_jee_juno/eclipse/plugins/org.erlide.kernel.common_0.15.0.201202052049/ebin 到 @21690087 的代码路径:: 后端 erl5.9.1 /956f3_guhanb_53e808_erlide (D:\Erlang_exe\erl5.9.1) R15B01 []
12:15:01,569 F: (ErlConsoleManager.java:39) : 控制台添加到后端 erl5.9.1/956f3_guhanb_53e808_erlide (D:\Erlang_exe\erl5.9.1) R15B01 []
这似乎不是一个错误。
-国标
日志文件如下：
!SESSION 2012-08-21 16:03:39.552 -----------------------------------------------
eclipse.buildId=I20120608-1400
java.version=1.6.0_33
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Framework arguments: -product org.eclipse.epp.package.jee.product
Command-line arguments: -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.jee.product
!ENTRY org.eclipse.jface 2 0 2012-08-21 16:03:44.036
!MESSAGE Keybinding conflicts occurred. They may interfere with normal accelerator operation.
!SUBENTRY 1 org.eclipse.jface 2 0 2012-08-21 16:03:44.036
!MESSAGE A conflict occurred for ALT+CTRL+SHIFT+M:
Binding(ALT+CTRL+SHIFT+M,
ParameterizedCommand(Command(org.eclipse.pde.ui.openManifest,Open Manifest,
Open the plug-in manifest,
Category(org.eclipse.ui.category.navigate,Navigate,null,true),
org.eclipse.ui.internal.MakeHandlersGo@7a279c,
,,true),null),
org.eclipse.ui.defaultAcceleratorConfiguration,
org.eclipse.ui.contexts.window,,,system)
Binding(ALT+CTRL+SHIFT+M,
ParameterizedCommand(Command(org.erlide.ui.open.module,Open Module,
,
Category(org.eclipse.ui.category.navigate,Navigate,null,true),
org.eclipse.ui.internal.MakeHandlersGo@1be91c8,
[Lorg.eclipse.e4.ui.internal.workbench.Parameter;@551ee3,,true),null),
org.eclipse.ui.defaultAcceleratorConfiguration,
org.eclipse.ui.contexts.window,,,system)
!ENTRY org.erlide.core 1 0 2012-08-21 16:03:45.558
!MESSAGE Erlide log is in D:/W2
!ENTRY org.erlide.core 1 0 2012-08-21 16:03:45.584
!MESSAGE *** starting Erlide v0.15.0.201202052049 (core=0.15.0.201202052049) *** (Cp1252)
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.658
!MESSAGE NLS unused message: Always in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.660
!MESSAGE NLS unused message: Never in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.662
!MESSAGE NLS unused message: Prompt in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.663
!MESSAGE NLS unused message: WizardTransferPage_selectTypes in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.665
!MESSAGE NLS unused message: WizardTransferPage_selectAll in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.667
!MESSAGE NLS unused message: WizardTransferPage_deselectAll in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.668
!MESSAGE NLS unused message: WizardImportPage_browseLabel in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.670
!MESSAGE NLS unused message: WizardImportPage_browse2 in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.672
!MESSAGE NLS unused message: WizardImportPage_selectFolderLabel in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.673
!MESSAGE NLS unused message: WizardImportPage_selectFolderTitle in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.675
!MESSAGE NLS unused message: WizardImportPage_destinationLabel in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.676
!MESSAGE NLS unused message: WizardImportPage_options in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.678
!MESSAGE NLS unused message: WizardImportPage_projectNotExist in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.679
!MESSAGE NLS unused message: WizardImportPage_noOpenProjects in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.681
!MESSAGE NLS unused message: WizardImportPage_undefinedPathVariable in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.683
!MESSAGE NLS unused message: WizardImportPage_containerNotExist in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.684
!MESSAGE NLS unused message: WizardExportPage_errorDialogTitle in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.686
!MESSAGE NLS unused message: WizardExportPage_mustExistMessage in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.687
!MESSAGE NLS unused message: WizardExportPage_mustBeAccessibleMessage in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.689
!MESSAGE NLS unused message: WizardExportPage_detailsMessage in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.691
!MESSAGE NLS unused message: WizardExportPage_whatLabel in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.693
!MESSAGE NLS unused message: WizardExportPage_whereLabel in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.694
!MESSAGE NLS unused message: WizardExportPage_selectionDialogMessage in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.696
!MESSAGE NLS unused message: WizardExportPage_resourceTypeDialog in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.697
!MESSAGE NLS unused message: WizardExportPage_folder in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.699
!MESSAGE NLS unused message: WizardExportPage_browse in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.700
!MESSAGE NLS unused message: WizardExportPage_allTypes in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.702
!MESSAGE NLS unused message: WizardExportPage_specificTypes in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.703
!MESSAGE NLS unused message: WizardExportPage_edit in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.705
!MESSAGE NLS unused message: WizardExportPage_details in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.706
!MESSAGE NLS unused message: WizardExportPage_selectResourcesTitle in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.708
!MESSAGE NLS unused message: WizardExportPage_oneResourceSelected in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.710
!MESSAGE NLS unused message: WizardExportPage_selectResourcesToExport in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.711
!MESSAGE NLS unused message: WizardExportPage_resourceCountMessage in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.713
!MESSAGE NLS missing message: DataTransfer_scanningChildren in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.osgi 2 1 2012-08-21 16:03:52.715
!MESSAGE NLS missing message: ZipExport_description in: org.erlide.ui.wizards.messages
!ENTRY org.eclipse.jface 4 2 2012-08-21 16:04:04.742
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.jface".
!STACK 0
java.lang.NullPointerException
at org.eclipse.core.runtime.Path.<init>(Path.java:153)
at org.erlide.ui.wizards.ErlangProjectImportWizard.setupDirectoriesPage(ErlangProjectImportWizard.java:92)
at org.erlide.ui.wizards.ErlangProjectImportWizard$2.pageChanged(ErlangProjectImportWizard.java:218)
at org.eclipse.jface.wizard.WizardDialog$9.run(WizardDialog.java:1553)
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.wizard.WizardDialog.firePageChanged(WizardDialog.java:1551)
at org.eclipse.jface.wizard.WizardDialog.update(WizardDialog.java:1336)
at org.eclipse.jface.wizard.WizardDialog.updateForPage(WizardDialog.java:1264)
at org.eclipse.jface.wizard.WizardDialog.access$4(WizardDialog.java:1238)
at org.eclipse.jface.wizard.WizardDialog$8.run(WizardDialog.java:1227)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.jface.wizard.WizardDialog.showPage(WizardDialog.java:1225)
at org.eclipse.jface.wizard.WizardDialog.nextPressed(WizardDialog.java:915)
at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:428)
at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4169)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3758)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
at org.eclipse.jface.window.Window.open(Window.java:801)
at org.eclipse.ui.internal.handlers.WizardHandler$Import.executeHandler(WizardHandler.java:152)
at org.eclipse.ui.internal.handlers.WizardHandler.execute(WizardHandler.java:279)
at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293)
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:229)
at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:210)
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:492)
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:1022)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:916)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:585)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:540)
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)