[kepler-users] Status of Kepler-2.0?

[Matt Jones]

Hi Tom,

Kepler 2.0.0 is being prepared for release, and is going through testing.
 For that purpose, we are developing a series of release candidates.  These
will not be supported after 2.0.0 comes out, but any issues you find with
them would be valuable to report to kepler-dev to improve the quality of the
release.  Discussion of the new release occurs on kepler-dev rather than
kepler-users.

For 1.0.0, the reason that you are probably having trouble is your R
version.  Kepler 1.0.0 shipped with an earlier version of R (2.6.2), and the
R actor was fairly sensitive to the particular version used (because
different R versions serialize their output differently).  I believe that
Ben has upgraded to R 2.10 for the 2.0.0 release series (hopefully he'll
confirm), which is why things probably work now for you.  This is just a
guess on my part, but likely is related to the problem.  If you want 1.0.0
to work, install a parallel copy of the old version of R and put it first on
your path and I'll bet Kepler 1.0.0's R functionality will work for you
again.

Matt

On Tue, Mar 30, 2010 at 1:05 PM, Tom Wainwright
<Thomas.Wainwright at noaa.gov>wrote:

> Hi,
>
> I have been trying to use Kepler 1.0.0 to organize some complicated R-based
> analyses, and have run into some problems.  In particular, the
> "getting-started" example "00-StatisticalSummary.xml" produces no output,
> and results in NullPointerException errors in the RExpression class.  (It
> worked last year, but not now--I am currently running Fedora-11 x86_64
> Linux, with R version 2.10.1 and java version "1.6.0_17" OpenJDK.)
>
> Poking about, I found Kepler-2.0-RC1 on
> http://dist.kepler-project.org/dist.  I downloaded and ran it, and my
> problem seems to be fixed.
>
> I haven't seen any public announcement about availability of the RC.  Is
> this something that is useable at this point?  For learning and early
> development, should I go ahead and use it, assuming bugs will be fixed in
> the near future?
>
> Thanks!
>
> --
> Tom Wainwright
> NOAA Northwest Fisheries Science Center
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> The contents of this message are mine personally and do not necessarily
> reflect any position of the Government or the National Oceanic and
> Atmospheric Administration.
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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