View descriptor not found exception in eclipse PDE

Question

How can I debug "View descriptor not found" ? I am sure that the view id passed in addView() (called during the perspective's createInitialLayout() method) is really the view id of the view to which I refer and that view is declared in its plugin. In fact, it works in my workspace but not in the binary despite the very same plugins being present in the binary.

Nevertheless, I get "View descriptor not found" (stack trace attached at end).

Any tips appreciated.

    org.eclipse.ui.PartInitException: View descriptor not found: myTree.TreeView
    at org.eclipse.ui.internal.FolderLayout.addView(FolderLayout.java:75)
    at com.xxx.yyy.perspective.perspectives.RelEngPerspective.addViews(RelEngPerspective.java:87)
    at com.xxx.yyy.perspective.perspectives.RelEngPerspective.createInitialLayout(RelEngPerspective.java:81)
    at org.eclipse.ui.internal.Perspective.loadPredefinedPersp(Perspective.java:816)
    at org.eclipse.ui.internal.Perspective.createPresentation(Perspective.java:270)
    at org.eclipse.ui.internal.Perspective.<init>(Perspective.java:156)
    at org.eclipse.ui.internal.tweaklets.Workbench3xImplementation.createPerspective(Workbench3xImplementation.java:55)
    at org.eclipse.ui.internal.WorkbenchPage.createPerspective(WorkbenchPage.java:1672)
    at org.eclipse.ui.internal.WorkbenchPage.busyResetPerspective(WorkbenchPage.java:927)
    at org.eclipse.ui.internal.WorkbenchPage.access$13(WorkbenchPage.java:876)
    at org.eclipse.ui.internal.WorkbenchPage$14.run(WorkbenchPage.java:3093)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.internal.WorkbenchPage.resetPerspective(WorkbenchPage.java:3091)
    at org.eclipse.ui.internal.ResetPerspectiveAction.run(ResetPerspectiveAction.java:59)
    at org.eclipse.ui.internal.PerspectiveAction.run(PerspectiveAction.java:70)
    at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
    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:4066)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
    at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
    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:369)
    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:619)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1407)

Answer 1

If it works in your workspace and not in the binary, there might be a problem in the build.properties of the plug-in declaring the view. Please check whether your plugin.xml is among the artifacts exported with the plug-in.