[kepler-users] Problems with Sample Workflow 1

[Kurt Stockinger]

Hi,

I seem to have problems with the workflow 00-StatisticalSummary in
demos/getting-started. I always get a null pointer exception:

java.lang.NullPointerException
   at org.ecoinformatics.seek.R.RExpression.fire(RExpression.java:474)
   at ptolemy.actor.AtomicActor.iterate(AtomicActor.java:337)
   at
ptolemy.actor.sched.StaticSchedulingDirector.fire(StaticSchedulingDirector.java:170)

   at ptolemy.actor.CompositeActor.fire(CompositeActor.java:331)
   at ptolemy.actor.Manager.iterate(Manager.java:668)
   at ptolemy.actor.Manager.execute(Manager.java:327)
   at ptolemy.actor.Manager.run(Manager.java:1044)
   at ptolemy.actor.Manager$3.run(Manager.java:1085)

I've download Kepler and tested it both on Linux and MacOS X. In both
cases I get the same results.

Does this workflow require R?

Thanks,
Kurt