Hi, I am new to Mason and would like to run some Network simulations, but I can't seem to get my feet off the ground. I seem to be able to get things to run fine from Netbeans but when I try to compile from the terminal java can't seem to find the Mason packages. I think this is a very basic error but here it is: david@Calculo:~/netbeans/mason/sim/app/tutorial1and2$ javac Tutorial1.java Tutorial1.java:3: package sim.engine does not exist import sim.engine.*; Any help is greatly appreciated. Thanks, David