Type dependencies stopped working with my current project. Each time I got Type dependencies panel open and I focus on class code I got error (restarting FDT won't help) An error has occurred. See error log for more details. java.lang.UnsupportedOperationException !ENTRY org.eclipse.ui.workbench 4 2 2011-09-19 22:51:11.768 !MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench". !STACK 0 java.lang.UnsupportedOperationException at com.powerflasher.fdt.core.outermodel.SWCModel.getParent(SWCModel.java:209) at com.powerflasher.fdt.tools.dependencyvisualizer.views.DependencyVisualizer$1.select(DependencyVisualizer.java:308) at org.eclipse.zest.core.viewers.internal.AbstractStylingModelFactory.filterElement(AbstractStylingModelFactory.java:381) at org.eclipse.zest.core.viewers.internal.GraphModelFactory.doBuildGraph(GraphModelFactory.java:70) at org.eclipse.zest.core.viewers.internal.GraphModelFactory.createGraphModel(GraphModelFactory.java:42) at org.eclipse.zest.core.viewers.internal.AbstractStructuredGraphViewer.inputChanged(AbstractStructuredGraphViewer.java:482) at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:274) at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1664) at com.powerflasher.fdt.tools.dependencyvisualizer.views.DependencyVisualizer.displayInput(DependencyVisualizer.java:552) at com.powerflasher.fdt.tools.dependencyvisualiser.shared.HistoryNavigationViewPart.setNewInput(HistoryNavigationViewPart.java:104) at com.powerflasher.fdt.tools.dependencyvisualizer.views.DependencyVisualizer.loadInputFromEditor(DependencyVisualizer.java:239) at com.powerflasher.fdt.tools.dependencyvisualizer.views.DependencyVisualizer.access$9(DependencyVisualizer.java:214) at com.powerflasher.fdt.tools.dependencyvisualizer.views.DependencyVisualizer$EditorListener.partActivated(DependencyVisualizer.java:249) at org.eclipse.ui.internal.PartListenerList2$1.run(PartListenerList2.java:70) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.runtime.Platform.run(Platform.java:888) at org.eclipse.ui.internal.PartListenerList2.fireEvent(PartListenerList2.java:55) at org.eclipse.ui.internal.PartListenerList2.firePartActivated(PartListenerList2.java:68) at org.eclipse.ui.internal.PartService.firePartActivated(PartService.java:192) at org.eclipse.ui.internal.PartService.setActivePart(PartService.java:306) at org.eclipse.ui.internal.WorkbenchPagePartList.fireActivePartChanged(WorkbenchPagePartList.java:57) at org.eclipse.ui.internal.PartList.setActivePart(PartList.java:136) at org.eclipse.ui.internal.WorkbenchPage.setActivePart(WorkbenchPage.java:3537) at org.eclipse.ui.internal.WorkbenchPage.requestActivation(WorkbenchPage.java:3077) at org.eclipse.ui.internal.PartPane.requestActivation(PartPane.java:279) at org.eclipse.ui.internal.EditorPane.requestActivation(EditorPane.java:98) at org.eclipse.ui.internal.PartPane.setFocus(PartPane.java:325) at org.eclipse.ui.internal.EditorPane.setFocus(EditorPane.java:127) at org.eclipse.ui.internal.PartStack.presentationSelectionChanged(PartStack.java:844) at org.eclipse.ui.internal.PartStack.access$1(PartStack.java:827) at org.eclipse.ui.internal.PartStack$1.selectPart(PartStack.java:137) at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation$1.handleEvent(TabbedStackPresentation.java:133) at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:269) at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:278) at org.eclipse.ui.internal.presentations.defaultpresentation.DefaultTabFolder.access$1(DefaultTabFolder.java:1) at org.eclipse.ui.internal.presentations.defaultpresentation.DefaultTabFolder$2.handleEvent(DefaultTabFolder.java:88) 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.Widget.sendEvent(Widget.java:1077) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:774) at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:2743) at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1429) at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:257) 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)