I'm using jess43.
I can't run the examples/animal.clp in the graphical verison of the 
Jess command-line interface.
The following are the results I got.


Jess output appears in this window.
Type your input in the one-line input box below.
Jess> (batch examples/animal.clp)
Rete Exception in routine _load_facts::call while executing defrule 
initialize-1.
  Message: I/O Exception java.io.FileNotFoundException: animal.dat 
(The system cannot find the file specified) at line 151:  ( run )  at 
line 0:  ( batch examples/animal.clp ) .
        at jess.LoadFacts.call(Funcall.java:1604)
        at jess.Funcall.simpleExecute(Funcall.java:354)
        at jess.Funcall.execute(Compiled Code)
        at jess.Funcall.execute(Funcall.java:213)
        at jess.Defrule.fire(Compiled Code)
        at jess.Activation.fire(Activation.java:52)
        at jess.Rete.run(Compiled Code)
        at jess.Rete.run(Compiled Code)
        at jess.HaltEtc.call(Funcall.java:1514)
        at jess.Funcall.simpleExecute(Funcall.java:354)
        at jess.Funcall.execute(Compiled Code)
        at jess.Funcall.execute(Funcall.java:213)
        at jess.Jesp.parseAndExecuteFuncall(Jesp.java:1491)
        at jess.Jesp.parseSexp(Jesp.java:161)
        at jess.Jesp.parse(Compiled Code)
        at jess.Batch.call(Compiled Code)
        at jess.Funcall.simpleExecute(Funcall.java:354)
        at jess.Funcall.execute(Compiled Code)
        at jess.Funcall.execute(Funcall.java:213)
        at jess.Jesp.parseAndExecuteFuncall(Jesp.java:1491)
        at jess.Jesp.parseSexp(Jesp.java:161)
        at jess.Jesp.parse(Compiled Code)
        at jess.Console.execute(Compiled Code)
        at jess.Console.main(Console.java:138)
Jess> 

I just wonder why the results happened?
Thanks a lot.
Rgds
Anna

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