org.eclipse.core.runtime.AssertionFailedException: assertion failed:

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org.eclipse.core.runtime.AssertionFailedException: assertion failed:
at org.eclipse.core.runtime.Assert.isTrue(Assert.java:110)
at org.eclipse.jface.viewers.AbstractTreeViewer.assertContentProviderType(AbstractTreeViewer.java:2321)
at org.eclipse.jface.viewers.TreeViewer.assertContentProviderType(TreeViewer.java:384)
at org.eclipse.jface.viewers.StructuredViewer.setContentProvider(StructuredViewer.java:1640)
at org.eclipse.jface.viewers.AbstractTreeViewer.setContentProvider(AbstractTreeViewer.java:2317)
at com.aptana.editor.common.outline.CommonQuickOutlinePage.createTreeViewer(CommonQuickOutlinePage.java:560)
at com.aptana.editor.common.outline.CommonQuickOutlinePage.createControl(CommonQuickOutlinePage.java:145)
at com.aptana.editor.common.outline.QuickOutlinePopupDialog.createDialogArea(QuickOutlinePopupDialog.java:75)
at org.eclipse.jface.dialogs.PopupDialog.createContents(PopupDialog.java:688)
at org.eclipse.jface.window.Window.create(Window.java:431)
at com.aptana.editor.js.outline.QuickOutlineHandler.execute(QuickOutlineHandler.java:22)
at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:468)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:786)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:885)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:567)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:508)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1031)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:3775)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1367)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1390)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1375)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1404)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1400)
at org.eclipse.swt.widgets.Canvas.sendKeyEvent(Canvas.java:416)
at org.eclipse.swt.widgets.Control.doCommandBySelector(Control.java:958)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
at org.eclipse.swt.internal.cocoa.NSResponder.interpretKeyEvents(NSResponder.java:56)
at org.eclipse.swt.widgets.Composite.keyDown(Composite.java:587)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:220)
at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:1943)
at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2025)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:4582)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:115)
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 com.appcelerator.titanium.rcp.IDEApplication.start(IDEApplication.java:125)
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 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:597)
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)

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