That error usually means that you are not using the FuzzyJess Main class and are still using the Jess Main class. >From the manual ...
How to use the Fuzzy Extensions with Jess To use the extension with Jess is really quite simple. You need to have access to the FuzzyJ Toolkit and FuzzyJess packages (nrc.fuzzy and nrc.fuzzy.jess). These will have been obtained with the appropriate licence <file:///E:/FuzzyJToolkit/IR_public/fuzzy/fuzzyLicence.html> requirements being met. Normally these will be in a Java jar file for easy inclusion in the classpath variable. The only other thing that is required is that instead of using the Rete object in programs, you must use the FuzzyRete object. For convenience the classes nrc.fuzzy.jess.FuzzyConsole and nrc.fuzzy.jess.FuzzyMain have been provided and they can simply replace any use of jess.Console or jess.Main. Consider the code for FuzzyMain: public class FuzzyMain extends Main { public static void main(String[] argv) { FuzzyMain m = new FuzzyMain(); m.initialize(argv, new FuzzyRete()); m.execute(true); } } and the code for FuzzyConsole: public class FuzzyConsole extends Console { public FuzzyConsole(String name) { super(name, new FuzzyRete()); } public static void main(String[] argv) { new FuzzyConsole("Fuzzy Jess Console").execute(argv); } } To start the FuzzyConsole one might execute a command line similar to the one to start the standard Jess Console: java -classpath "%classpath%";f:\fuzzyjtoolkit\fuzzyj15a.jar;.\ nrc.fuzzy.jess.FuzzyConsole with appropriate entries in the -classpath option to allow all necessary classes to be located. If you have been able to use standard Jess then you will no doubt have little trouble using FuzzyJess. Bob Orchard National Research Council Canada Conseil national de recherches Canada Institute for Information Technology Institut de technologie de l'information 1200 Montreal Road, Building M-50 M50, 1200 chemin Montréal Ottawa, ON, Canada K1A 0R6 Ottawa (Ontario) Canada K1A 0R6 (613) 993-8557 (613) 952-0215 Fax / télécopieur [EMAIL PROTECTED] Government of Canada | Gouvernement du Canada -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of seyed hossein Sent: Monday, July 07, 2008 12:52 PM To: jess-users@sandia.gov Subject: Re: JESS: Installing Fuzzy on Jess Sorry for the delay in answering but I'm away on vacation (for another week or so) .. but the details are in the FuzzyJ User Guide ... see the chapter on FuzzyJess and the section How to use the Fuzzy Extensions with Jess This is a Java problem but you must use the FuzzyJess Console of the FuzzyJess Main class as described in the section mentioned above .. Bob. In eclipse you can right click your project, and go to the "properties" option. In this list there is a "Java Build Path" section. Click the libraries tab and add your jar file there. The classpath is just the path that the ... Thanks for the replies, I thought the materials in the "FuzzyJess-How to use the Fuzzy Extensions with Jess" section were covered by simply following Mr. Wyrick's comments on the addition of the fuzzyJ110a.jar file in Eclipse project properties>Java Build Path>Libraries. Doing so, the fuzzyJess example mentioned in that section seems error free in Eclipse, however it still gives a warning of "Undefined function at token 'fuzzy-match' ". Is this a common error on Jess or is there something wrong with my program? Thanks, Seyed