Troubleshooting

My simulation does not run and I get a dialog titled “Problems (Last Simulation)”
- See Fixing Problems.
My simulation does not make any progress
- It is possible your simulation contains an infinite loop. If a case moves in an infinite loop of activities that take no time to complete, the simulation clock will not advance. This can be seen if you run the simulation in Trace mode.
I get a “Websocket connection failed” error
- Check if you have a firewall or antivirus that is preventing Websocket connections, and if unsure, please contact your IT department. If you allow Websocket connections and still get this error, contact https://echo.igrafx.com for assistance.

Ideas for Making Troubleshooting Easier

It’s hard for me to track the original case when splits occur, or for case logging
- You can create a ‘Case’ scope variable, e.g. ‘CaseID’, to hold the value of the original token’s (case) ID. Assign the value on the shape with the Generator to be the value of a Model variable counter that you increment ‘On Enter’ for each token (case) generated. For Example:
- This will mean every case has a unique ID, that will remain as the value of your CaseID, even if the token is split. This can also be useful for case log data intended as input for Process Mining, each original instance of the process will have a unique ID as it moves through various Activities, even if parallelism / splits occur.