When I press play to traverse the model, nothing happens.

[Sandis Ivanovskis (Expcookie)]

Hello, i'm having a problem with trying to use GraphWalker Studio.

In the wiki for "creating a model" it says to just press play to verify the correctness of the model, however whenever I press play, nothing happens.

Afterwards, I can't open any new model files until i close the command prompt and open it up again. I tried using the model file that is provided in that section of the wiki, but the same problem persists.

What could I be doing wrong? (mind you, i'm a complete novice at this).

[arzace20]

I have the same issue, and the terminal has this error:

java.lang.Exception: java.lang.NoSuchMethodError: 'void sun.misc.Unsafe.ensureClassInitialized(java.lang.Class)'
        at org.java_websocket.server.WebSocketServer$WebSocketWorker.run(WebSocketServer.java:1109)
Caused by: java.lang.NoSuchMethodError: 'void sun.misc.Unsafe.ensureClassInitialized(java.lang.Class)'

I have jdk 23 bin specified in the PATH variable for my Windows machine. Is this error something to do with Java version mismatch between the studio jar and jdk 23?

[Shawn Knight]

could be that you have not set the starting vertex (node)