[kepler-dev] Reg. problem running kepler

Matthew Brooke brooke at nceas.ucsb.edu
Wed Apr 12 09:01:57 PDT 2006

Hi Siva -

Don't want to step on Christopher's toes, but I know he's busy, and I 
don't think this is a Ptolemy problem, so here goes...

I don't use Eclipse, but have seen similar problems with JBuilder. The 
error message about "could not parse the argument '-kepler'" is 
typically misleading, since the real cause is often something entirely 
different, and you have to look further down the stacktrace for the real 
problem. In your case, I see this:

  "...Caused by:
  java.lang.ClassNotFoundException: org.kepler.gui.LibraryPaneFactory..."

- so I'd check that org.kepler.gui.LibraryPaneFactory is indeed present 
in your source directory, and has been compiled successfully to your 
build directory, and that the build destination is on Eclipse's classpath.

(Since you had some manifest files missing, it sounds like you may have 
an incomplete checkout of the kepler tree, so it would be worth 
checking, if you didn't already)

Other problems like this have been caused for me by:

1)  not having the configuration files in the IDE classpath, too. My 
current classpath additions for config files and other resources are as 


Try adding those in Eclipse if you didn't already

2) by the (yourHomeDirectory)/.kepler directory being corrupt/out of 
date/otherwise wrong. To fix this, you can delete the 
(yourHomeDirectory)/.kepler directory, the kepler/build directory, and 
also the kepler/kar directory, and then do an "ant buildkarlib run-dev"

Good luck!


Matthew Brooke, Ph.D.
Marine Sciences Research Building, Room #3407
University of California
Santa Barbara, CA  93106-6150
ph: (805) 893-7108   fx: 805-893-8062
brooke at nceas.ucsb.edu

Sivagowri Swaminathan wrote:
> Hi Christopher
> As per my last email, I had problems running the ant for building kar files. some actors did not have manifest.mf files in their respective folders. So I deleted those actor folders in kepler directory and the ant build was succesful.
> Now my problem is running the kepler from eclipse. As given in the documentation, 'using eclipse to build kepler', I gve arguments as -kepler and vm arguments as -Dkepler and -DPTII etc and chose PTII's vergilApplication as main class. But when I run, it produced some errors saying , it could not parse the argument '-kepler'. In fact, the error happens for any argument and no argument cases.
> I am unable to debug through it, as PTII is a seperate project and is not inside the kepler workspace.
> can you please suggest some workaround?
> I have herewith enclosed the error's stack trace for your kind perusal.
> How do I get kepler running?
> Thanx
> Siva
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