Error in Scenario Server: WorldRunTimeLogging logging has not been enabled

rrSim = rrApp.createSimulation
rrSim.set("Logging","on")
rrSim.set("SimulationCommand","Start")
rrLog = rrSim.get("SimulationLog");

I ran the above lines of code, trying to get the log of Roadrunner simulation. However, after enabling logging through rrSim and waiting for the simulation to complete, I can't run rrSim.get("SimulationLog"), due to this error:

Error using Simulink.ScenarioSimulationMcos/get

Error in Scenario Server: WorldRuntimeLogging logging has not been enabled.

Error in Simulink.ScenarioSimulation/get

Any help is appreciated

Answer 1

[Simon Silge]

It looks like this problem has been fixed in Update 1 for RoadRunner. Please reinstall R2024b from our website to receive the newest version.

[Wayne]

Thank you for your information.

Answer 2

[Saurabh]

Hi @Tyson Nguyen,

Upon attempting to reproduce the issue on my end, I encountered a similar problem. I explored several options to determine if a workaround was available, and I successfully identified one.

1. Run the simulation from CmdRoadRunnerAPI using ".\CmdRoadRunnerApi.exe --serverAddress localhost:<port> "SimulateScenario(pacing.value='1' enable_runtime_log='true')".
2. Execute set(rrSim,"Logging","On") from MATLAB.
3. Fetch the log from MATLAB using simLog = get(rrSim, "SimulationLog");

I hope this was helpful.

[Wayne]

@Saurabh how to execute the first step? how to run the simulation in CmdRoadRunnerAPI.exe with the command? thank you.

[Saurabh]

Hi @Wayne,

You can check out the following site to learn how to run the simulation using 'CmdRoadRunnerAPI.exe' with the command:

• https://www.mathworks.com/help/roadrunner/ref/cmdroadrunnerapi.html?searchHighlight=CmdRoadRunnerAPI%20&s_tid=srchtitle_support_results_1_CmdRoadRunnerAPI%20
• https://www.mathworks.com/help/roadrunner-scenario/ref/simulatescenario.html

[Wayne]

Hi @Saurabh, thank you for getting back to me.

CmdRoadRunnerAPI is a gRPC method, after I run the simulation, how can I change back to MATLAB and execute the step 2 and 3? Thank you.

[Simon Silge]

It looks like this problem has been fixed in Update 1 for RoadRunner.

[Tyson Nguyen]

@Simon Silge

Does that mean I have to uninstall roadrunner and reinstall it to update it?

[Simon Silge]

@Tyson Nguyen yes that is correct. There is no other way to install an update for a certain release that I know of.