The following forum message was posted by willemx at 
http://sourceforge.net/projects/pydev/forums/forum/293649/topic/3717083:

Fabio,

This is my problem:

When I try to configure the Python interpreter in Eclipse
(Eclipse menu: Window>Preferences>Interpreter - Python)
A dialog box titled \"Problem occurred\" pops up, saying:
\"Unable to create the selected preference page\"
\"org.python.pydev.ui.pythonpathconfig.PythonInterpreterPreferencesPage\"

(I don\'t know how to attach a screenshot to this forumpost, otherwise I would 
do so...)

At the bottom of this post I will list the contents of the .log file in the 
workspace .metadata dir.

I am using Windows XP SP3

Thanks for helping me!

Kind regards,
Willem

contents of .log file:

!SESSION 2010-05-23 15:17:00.421 -----------------------------------------------
eclipse.buildId=M20100211-1343
java.version=1.6.0_20
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Command-line arguments:  -os win32 -ws win32 -arch x86

!ENTRY org.eclipse.jface 2 0 2010-05-23 15:17:05.812
!MESSAGE Keybinding conflicts occurred.  They may interfere with normal 
accelerator operation.
!SUBENTRY 1 org.eclipse.jface 2 0 2010-05-23 15:17:05.812
!MESSAGE A conflict occurred for CTRL+SHIFT+T:
Binding(CTRL+SHIFT+T,
        ParameterizedCommand(Command(org.eclipse.jdt.ui.navigate.open.type,Open 
Type,
                Open a type in a Java editor,
                Category(org.eclipse.ui.category.navigate,Navigate,null,true),
                ,
                ,,true),null),
        org.eclipse.ui.defaultAcceleratorConfiguration,
        org.eclipse.ui.contexts.window,,,system)
Binding(CTRL+SHIFT+T,
        
ParameterizedCommand(Command(com.python.pydev.analysis.actions.pyGlobalsBrowserWorkbench,Python
 Show Class Browser,
                Show Class Browser,
                Category(org.python.pydev.ui.category.source,Pydev - 
Editor,Pydev editor category,true),
                ,
                ,,true),null),
        org.eclipse.ui.defaultAcceleratorConfiguration,
        org.eclipse.ui.contexts.window,,,system)

!ENTRY org.eclipse.osgi 2 0 2010-05-23 15:17:14.796
!MESSAGE The activator org.python.pydev.plugin.PydevPlugin for bundle 
org.python.pydev is invalid
!STACK 0
org.osgi.framework.BundleException: The activator 
org.python.pydev.plugin.PydevPlugin for bundle org.python.pydev is invalid
        at 
org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:157)
        at 
org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:751)
        at 
org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:352)
        at 
org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:280)
        at 
org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:408)
        at 
org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:238)
        at 
org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1193)
        at 
org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:160)
        at 
org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:874)
        at 
org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
        at 
org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
        at 
org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:267)
        at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
        at 
org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:263)
        at 
org.eclipse.ui.internal.dialogs.WorkbenchPreferenceNode.createPage(WorkbenchPreferenceNode.java:47)
        at 
org.eclipse.jface.preference.PreferenceDialog.createPage(PreferenceDialog.java:1339)
        at 
org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.createPage(FilteredPreferenceDialog.java:382)
        at 
org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1230)
        at 
org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:679)
        at 
org.eclipse.jface.preference.PreferenceDialog$10.run(PreferenceDialog.java:708)
        at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
        at 
org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:704)
        at 
org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:864)
        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.JFaceUtil$1.run(JFaceUtil.java:48)
        at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
        at 
org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:862)
        at 
org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1175)
        at 
org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1200)
        at 
org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:251)
        at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:245)
        at org.eclipse.jface.util.OpenStrategy$3.run(OpenStrategy.java:419)
        at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
        at 
org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
        at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3885)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3506)
        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.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:211)
        at 
org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesAction.java:65)
        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:1003)
        at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3910)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3503)
        at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
        at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
        at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
        at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
        at 
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at 
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
        at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
        at 
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
        at 
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
        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:368)
        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:559)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
Caused by: java.lang.ClassNotFoundException: org.python.pydev.plugin.PydevPlugin
        at 
org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:494)
        at 
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
        at 
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:398)
        at 
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at 
org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:326)
        at 
org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:231)
        at 
org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:150)
        ... 68 more
Root exception:
java.lang.ClassNotFoundException: org.python.pydev.plugin.PydevPlugin
        at 
org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:494)
        at 
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
        at 
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:398)
        at 
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at 
org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:326)
        at 
org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:231)
        at 
org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:150)
        at 
org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:751)
        at 
org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:352)
        at 
org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:280)
        at 
org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:408)
        at 
org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:238)
        at 
org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1193)
        at 
org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:160)
        at 
org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:874)
        at 
org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
        at 
org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
        at 
org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:267)
        at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
        at 
org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:263)
        at 
org.eclipse.ui.internal.dialogs.WorkbenchPreferenceNode.createPage(WorkbenchPreferenceNode.java:47)
        at 
org.eclipse.jface.preference.PreferenceDialog.createPage(PreferenceDialog.java:1339)
        at 
org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.createPage(FilteredPreferenceDialog.java:382)
        at 
org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1230)
        at 
org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:679)
        at 
org.eclipse.jface.preference.PreferenceDialog$10.run(PreferenceDialog.java:708)
        at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
        at 
org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:704)
        at 
org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:864)
        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.JFaceUtil$1.run(JFaceUtil.java:48)
        at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
        at 
org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:862)
        at 
org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1175)
        at 
org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1200)
        at 
org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:251)
        at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:245)
        at org.eclipse.jface.util.OpenStrategy$3.run(OpenStrategy.java:419)
        at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
        at 
org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
        at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3885)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3506)
        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.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:211)
        at 
org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesAction.java:65)
        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:1003)
        at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3910)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3503)
        at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
        at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
        at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
        at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
        at 
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at 
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
        at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
        at 
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
        at 
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
        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:368)
        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:559)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1311)

!ENTRY org.eclipse.equinox.registry 4 1 2010-05-23 15:17:14.921
!MESSAGE Unable to create the selected preference page.
!STACK 0
java.lang.ClassNotFoundException: 
org.python.pydev.ui.pythonpathconf.PythonInterpreterPreferencesPage
        at 
org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:494)
        at 
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:410)
        at 
org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:398)
        at 
org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:105)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at 
org.eclipse.osgi.internal.loader.BundleLoader.loadClass(BundleLoader.java:326)
        at 
org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:231)
        at 
org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1193)
        at 
org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:160)
        at 
org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:874)
        at 
org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
        at 
org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
        at 
org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:267)
        at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
        at 
org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:263)
        at 
org.eclipse.ui.internal.dialogs.WorkbenchPreferenceNode.createPage(WorkbenchPreferenceNode.java:47)
        at 
org.eclipse.jface.preference.PreferenceDialog.createPage(PreferenceDialog.java:1339)
        at 
org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.createPage(FilteredPreferenceDialog.java:382)
        at 
org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1230)
        at 
org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:679)
        at 
org.eclipse.jface.preference.PreferenceDialog$10.run(PreferenceDialog.java:708)
        at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
        at 
org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:704)
        at 
org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:864)
        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.JFaceUtil$1.run(JFaceUtil.java:48)
        at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
        at 
org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:862)
        at 
org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1175)
        at 
org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1200)
        at 
org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:251)
        at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:245)
        at org.eclipse.jface.util.OpenStrategy$3.run(OpenStrategy.java:419)
        at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
        at 
org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
        at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3885)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3506)
        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.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:211)
        at 
org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesAction.java:65)
        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:1003)
        at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3910)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3503)
        at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
        at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
        at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
        at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
        at 
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
        at 
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
        at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
        at 
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
        at 
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
        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:368)
        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:559)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1311)



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