Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".

Hello.

I am developing a node for KNIME and when I try to run my eclipse-project with this node the following error messages occur:

!ENTRY org.eclipse.ui.workbench 4 2 2012-10-30 18:17:18.437

!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".

!STACK 0

java.lang.NullPointerException

... and a stack trace. Does anyone had met such error before?

 

Even when a new project with autocreated stab files is run this error still occurs. 

Could you post the complete stacktrace?

 !ENTRY org.eclipse.ui.workbench 4 2 2012-11-01 00:20:41.656

!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
java.lang.NullPointerException
at com.knime.reporting.designer.listeners.SwitchPerspectiveListener.handlePartChanged(SwitchPerspectiveListener.java:154)
at com.knime.reporting.designer.listeners.SwitchPerspectiveListener.windowActivated(SwitchPerspectiveListener.java:223)
at org.eclipse.ui.internal.Workbench$14.run(Workbench.java:999)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.Workbench.fireWindowActivated(Workbench.java:997)
at org.eclipse.ui.internal.WorkbenchWindow$28.shellActivated(WorkbenchWindow.java:3110)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.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:1058)
at org.eclipse.swt.widgets.Decorations.WM_ACTIVATE(Decorations.java:1635)
at org.eclipse.swt.widgets.Shell.WM_ACTIVATE(Shell.java:2114)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4159)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)
at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1598)
at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2038)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4873)
at org.eclipse.swt.internal.win32.OS.DestroyWindow(Native Method)
at org.eclipse.swt.widgets.Control.destroyWidget(Control.java:684)
at org.eclipse.swt.widgets.Shell.destroyWidget(Shell.java:697)
at org.eclipse.swt.widgets.Widget.release(Widget.java:818)
at org.eclipse.swt.widgets.Widget.dispose(Widget.java:446)
at org.eclipse.swt.widgets.Decorations.dispose(Decorations.java:447)
at org.eclipse.swt.widgets.Shell.dispose(Shell.java:714)
at org.eclipse.jface.window.Window.close(Window.java:335)
at org.eclipse.jface.dialogs.Dialog.close(Dialog.java:979)
at org.eclipse.jface.dialogs.TrayDialog.close(TrayDialog.java:179)
at org.eclipse.ui.internal.statushandlers.InternalDialog.close(InternalDialog.java:710)
at org.eclipse.jface.window.Window.handleShellCloseEvent(Window.java:741)
at org.eclipse.jface.window.Window$3.shellClosed(Window.java:687)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:98)
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.Decorations.closeWidget(Decorations.java:308)
at org.eclipse.swt.widgets.Decorations.WM_CLOSE(Decorations.java:1665)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4164)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)
at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1598)
at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2038)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4873)
at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:2362)
at org.eclipse.swt.widgets.Shell.callWindowProc(Shell.java:495)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)
at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1598)
at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2038)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4873)
at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:2362)
at org.eclipse.swt.widgets.Shell.callWindowProc(Shell.java:495)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:4253)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)
at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1598)
at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2038)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4873)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2459)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3655)
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.knime.product.rcp.KNIMEApplication.start(KNIMEApplication.java:126)
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:620)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
at org.eclipse.equinox.launcher.Main.run(Main.java:1408)
at org.eclipse.equinox.launcher.Main.main(Main.java:1384)

In your Run/Debug Configuration you must select "Run a product" in the Main tab instead of "Run an application". Choose org.knime.product.KNIME_PRODUCT as the product identifier.