Hi You added the directory to CLASSPATH... I hope you mean C:\appl\Mason\mason and not C:\appl\Mason\mason\start I hope that was the problem, cause I followed your steps on two windows boxes and everything was fine. Here's two tips on how to make your life easier on your first day of using MASON. MASON comes with class files included, so you don't have to 'javac'ompile anything. Running mason.bat starts an empty console, not a specific application. You need to select from the combo box the application you want to run (e.g. sim.app.tutorial1and2.Tutorial2). Alternatively you can type the java name of a MASON application yourself, if it's not in the list. enjoy, Gabriel On Thu, 30 Jun 2005, Automatic digest processor wrote: > There is one message totalling 35 lines in this issue. > > Topics of the day: > > 1. How to set up the enviroment of the Mason > > ---------------------------------------------------------------------- > > Date: Wed, 29 Jun 2005 16:44:38 -0400 > From: Le Zhang <[log in to unmask]> > Subject: How to set up the enviroment of the Mason > > Sean, > I download the Mason from your webpage and zip it to C:/appl/Mason. > Then I run the mason/start/mason.bat. And add the directory to the > ClassPath. > However, I went to the C:\appl\Mason\mason\sim\app\tutorial1and2 > directory. I run the command such as javac CA.java. The system > generates the following error: > > C:\appl\Mason\mason\sim\app\tutorial1and2>javac CA.java > CA.java:6: cannot access sim.engine.Steppable > bad class file: C:\appl\Mason\mason\sim\engine\Steppable.class > class file contains wrong class: Mason.sim.engine.Steppable > Please remove or make sure it appears in the correct subdirectory of > the classpa > th. > public class CA implements Steppable > ^ > 1 error > > Could you help me to setup my coding environment? I run it in windows > XP. > > Thank you > Best Regards > Le Zhang > > ------------------------------ > > End of MASON-INTEREST-L Digest - 27 Jun 2005 to 29 Jun 2005 (#2005-23) > ********************************************************************** >