That's a classpath problem. What you need to do is set the CLASSPATH variable to include the
Java runtime jar, the current directory, and the Jess jar.
    Another thing that you can do is simply run it from within Visual Age 2, that's what I've been doing
so far. From the console simply use the command (batch <path>) to load one of the samples.
    I hope this helps.
 
    -Rakesh
----- Original Message -----
Sent: Wednesday, October 13, 1999 8:02 PM
Subject: JESS: Help with installation of JESS50b1

Obviously, I am new to JESS and, seemingly, challenged by any technology more advanced than a shovel!

I downloaded, extracted and compiled JESS50b1 first with javac in the JDK 1.2 and a second time with IBM Visual Age 2.0 with the same troublesome result.

When I attempted to confirm the correctness of the installation by running the fullmab.clp example I entered the command line "java jess.Main examples/fullmab.clp" and received the following error message whether compiled by the JDK or IBM Visual Age.

Exception in thread "Main" java.lang.NoClassDefFoundError: jess/Main

Would anyone be willing to take a few moments to put me back on the glidepath to a successf?

It would be much appreciated.

Frank Sodetz
   

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