I can verify that the fitness parameter declaration was missing from the release of ECJ v.16 on the website, and that adding it to the problematic tutorials makes them run fine.
Thanks!
Mike
----- Original Message -----
From: Sean Luke <[log in to unmask]>
Date: Saturday, December 1, 2007 2:31 pm
Subject: Re: Problem with ECJ Configuration?
> A double-check and I've verified that the current ECJ repository
> version has correct fitness parameter declarations. For tutorials
> 1,
> 2, and 3, the params file should have the following line:
>
> pop.subpop.0.species.fitness = ec.simple.SimpleFitness
>
> For tutorial 4, the file ec/gp/koza/koza.params should have the
> following line:
>
> pop.subpop.0.species.fitness = ec.gp.koza.KozaFitness
>
>
>
>
> For good measure, here's a grep of all the params files in ECJ
>
> pop.subpop.0.species.fitness = ec.simple.SimpleFitness
> ./app/coevolve1/coevolve1.params
>
> pop.subpop.0.species.fitness = ec.simple.SimpleFitness
> pop.subpop.1.species.fitness = ec.simple.SimpleFitness
> ./app/coevolve2/coevolve2.params
>
> pop.subpop.0.species.fitness = ec.simple.SimpleFitness
> ./app/ecsuite/ecsuite.params
>
> stat.child.0.y-axis-label = fitness
> ./app/gui/ant.params
>
> pop.subpop.0.species.fitness =
> ec.simple.SimpleFitness
> ./app/spatial/spatial.params
>
> pop.subpop.0.species.fitness = ec.simple.SimpleFitness
> ./app/sum/sum.params
>
> pop.subpop.0.species.fitness = ec.simple.SimpleFitness
> ./app/tutorial1/tutorial1.params
>
> pop.subpop.0.species.fitness = ec.simple.SimpleFitness
> ./app/tutorial2/tutorial2.params
>
> pop.subpop.0.species.fitness = ec.simple.SimpleFitness
> ./app/tutorial3/tutorial3.params
>
> pop.subpop.0.species.fitness = ec.gp.koza.KozaFitness
> pop.subpop.1.species.fitness = ec.gp.koza.KozaFitness
> pop.subpop.2.species.fitness = ec.gp.koza.KozaFitness
> ./exchange/inter.params
>
> pop.subpop.0.species.fitness = ec.gp.koza.KozaFitness
> ./gp/koza/koza.params
>
> pop.subpop.0.species.fitness =
> ec.multiobjective.spea2.SPEA2MultiObjectiveFitness
> ./multiobjective/spea2/spea2.params
>
> pop.subpop.0.species.fitness =
> ec.simple.SimpleFitness
> ./pso/pso.params
>
>
> On Nov 30, 2007, at 9:27 PM, Michael B Sullivan wrote:
>
> > Hi All,
> >
> > I'm sorry to waste anybody's time with a basic question, but I'm
> > trying out ECJ16 for the first time today, and I've had trouble
> > getting the tutorials to execute successfully. The errors I get
> > appear to be similar to ones that came up in an unresolved issue
> > from 2006:
> >
> > https://listserv.gmu.edu/cgi-bin/wa?A2=ind0609&L=ECJ-INTEREST-
> > L&P=R187&I=-3
> >
> > Tutorial #1 runs to completion, so something is working.
> However,
> > running tutorial2, tutorial3 or tutorial4 results in the
> following
> > error:
> >
> > lfm@lfm-x61:~/install/ecj/ec/app/tutorial2$ java ec.Evolve -file
>
> > tutorial2.params
> >
> > | ECJ
> > | An evolutionary computation system (version 16)
> > | By Sean Luke
> > | Contributors: L. Panait, G. Balan, S. Paus, Z. Skolicki, R.
> > Kicinger,
> > | J. Harrison, J. Bassett, R. Hubley, A. Desai,
> and
> > A. Chircop
> > | URL: http://cs.gmu.edu/~eclab/projects/ecj/
> > | Mail: [log in to unmask]
> > | (better: join ECJ-INTEREST at URL above)
> > | Date: March 20 2007
> > | Current Java: 1.6.0 / Java HotSpot(TM) Server VM-1.6.0-b105
> > | Required Minimum Java: 1.3
> >
> >
> > Threads: breed/1 eval/1
> > Seed: 4357
> > Job: 0
> > Setting up
> > Initializing Generation 0
> > Exception in thread "main" ec.util.ParamClassLoadException:
> > No class name provided.
> > PARAMETER: pop.subpop.0.species.fitness
> > at
> ec.util.ParameterDatabase.getInstanceForParameter
> > (ParameterDatabase.java:421)
> > at ec.Species.setup(Species.java:228)
> > at
> ec.vector.VectorSpecies.setup(VectorSpecies.java:146)>
> at ec.vector.IntegerVectorSpecies.setup
> > (IntegerVectorSpecies.java:178)
> > at ec.Subpopulation.setup(Subpopulation.java:132)
> > at ec.Population.setup(Population.java:105)
> > at ec.simple.SimpleInitializer.initialPopulation
> > (SimpleInitializer.java:46)
> > at ec.simple.SimpleEvolutionState.startFresh
> > (SimpleEvolutionState.java:54)
> > at ec.EvolutionState.run(EvolutionState.java:376)
> > at ec.Evolve.main(Evolve.java:595)
> >
> > I've tried using full pathnames of the parameter files to no
> > avail. I've also tried Java 1.4.2 (gcj) which resulted in the
> same
> > error. My CLASSPATH is configured to include the ecj main folder:
> >
> > lfm@lfm-x61:~/install/ecj/ec/app/tutorial2$ echo $CLASSPATH
> > /home/lfm/install/ecj/
> >
> > The problem is most likely with my configuration, but being
> > unfamiliar with ECJ, I'm not sure where I should proceed from
> > here. Has anybody had any experience with this error since it
> last
> > arose?
> >
> > Thanks!
> > Mike
>
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