Your testZZ directory contains source files for Pong, but the VMEmulator is running the Main.vm for Square.
Also, the stack trace in the VMEmulator shows that it is using the built-in version of Sys.vm and not the version loaded from a directory.
It looks like you either loaded the wrong directory into VMEmulator or you loaded just the Main.vm file.
You need to select the directory in the Load Program dialog so that it will load all the *.vm files in the directory.
After loading, the VMEmulator title bar should say, for example, D:\nand2tetris\projects\11\Square. It should not be D:\nand2tetris\projects\11\Square\Main.vm
Hello Mark,thank you very much for the help.:)
but I come up with another stupid question, how to make VM run faster, I went work today and 10 hours later when I back home its still playing with the Mwmory.alloc(running the Square program),Is there any parameter that determine the speed of this VM tool?