[news.eclipse.platform] BundleError while adding a preferencePage

[swetha@xxxxxxxxxxx (Swetha)]

Hi

I created a plugin project with Template using a PreferencePage..

Now I replaced the preferenePage with my own class that extends 
PreferencePage..

Also changed the plugin.xml appropriately...
<extension
        point="org.eclipse.ui.preferencePages">
     <page
           name="Sample Preferences"
           class="se.preferences.PropertyPreferencePage"
           id="se.preferences.PropertyPreferencePage">
     </page>
  </extension>

When I run the Eclipse app,click on Window->Preferences and click on the 
Sample Preferences node ,I get the following error message..

org.osgi.framework.BundleException: Bundle 
"org.eclipse.update.configurator" version "3.2.100.v20061214" has already 
been installed from: 
update@plugins/org.eclipse.update.configurator_3.2.100.v20061214.jar
at 
org.eclipse.osgi.framework.internal.core.Framework.createAndVerifyBundle(Framework.java:642)
at 
org.eclipse.osgi.framework.internal.core.Framework.installWorkerPrivileged(Framework.java:909)
at 
org.eclipse.osgi.framework.internal.core.Framework$2.run(Framework.java:824)
at java.security.AccessController.doPrivileged(Native Method)
at 
org.eclipse.osgi.framework.internal.core.Framework.installWorker(Framework.java:875)
at 
org.eclipse.osgi.framework.internal.core.Framework.installBundle(Framework.java:819)
at 
org.eclipse.osgi.framework.internal.core.BundleContextImpl.installBundle(BundleContextImpl.java:229)
at 
org.eclipse.core.runtime.adaptor.EclipseStarter.installBundles(EclipseStarter.java:1032)
at 
org.eclipse.core.runtime.adaptor.EclipseStarter.loadBasicBundles(EclipseStarter.java:609)
at 
org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:296)
at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:165)
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:476)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:416)
at org.eclipse.equinox.launcher.Main.run(Main.java:1124)
at org.eclipse.equinox.launcher.Main.main(Main.java:1099)

Am I missing something ...


Thanks
Swetha