Exception while running the SampleSyncAdapter

[Hugo Borda]

I'm new to phonegap environment. I'm trying to run the
SampleSyncAdapter and I see the following exception on the
eclipse .log file
<<----------------- Start
!ENTRY org.eclipse.core.jobs 4 2 2011-07-10 14:20:39.385
!MESSAGE An internal error occurred during: "Activity Monitor Job".
!STACK 0
java.lang.NullPointerException
at
org.eclipse.mylyn.internal.tasks.ui.TaskListSynchronizationScheduler.cancel(TaskListSynchronizationScheduler.java:
107)
at
org.eclipse.mylyn.internal.tasks.ui.TaskListSynchronizationScheduler.userAttentionGained(TaskListSynchronizationScheduler.java:
155)
at
org.eclipse.mylyn.internal.monitor.ui.ActivityContextManager.fireActive(ActivityContextManager.java:
222)
at org.eclipse.mylyn.internal.monitor.ui.ActivityContextManager.access
$2(ActivityContextManager.java:220)
at org.eclipse.mylyn.internal.monitor.ui.ActivityContextManager
$2.active(ActivityContextManager.java:92)
at
org.eclipse.mylyn.internal.monitor.ui.CheckActivityJob.run(CheckActivityJob.java:
101)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
<<----------------- End

my enviroment is
Eclipse Helios R2
Java 1.6
windows 7 64 bit

Has anyone run into the same?

Thanks, Hugo