I am getting a RoadRunner error "Actor with the given id '' is not found" on Simulink & On Matlab I am getting an error from Vision Detector

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Rahul 2023-9-23

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https://ww2.mathworks.cn/matlabcentral/answers/2024932-i-am-getting-a-roadrunner-error-actor-with-the-given-id-is-not-found-on-simulink-on-matlab-i

编辑： Shuba Nandini 2023-10-4

I have been using RoadRunner for a while now, However I suddenly started getting an error after making changes to my model.

"Actor with the given id '' is not found.. and from Matlab " I get an error from Vision Detector ssaying expeted Bus.NumActors to be nonnegative.

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Rahul 2023-9-24

I also realised that this error comes only after I switched my MATLAB and RoadRunner to 2023a. My model works fine on 2022b, but I get this error with 2023a.

Shuba Nandini 2023-10-4

编辑：Shuba Nandini 2023-10-4

Hi Rahul,

I understand you are facing an issue with the RoadRunner on Simulink and MATLAB. To receive and process the actions or events from “RoadRunner Scenario” in Simulink, you must create a Bus Object and add it to the “RoadRunner Scenario” Block.

Kindly refer to the following documentation for further information on Creating the Bus object for user defined event:

https://www.mathworks.com/help/driving/ref/roadrunnerscenario.html

https://www.mathworks.com/help/driving/ug/co-simulate-roadrunner-with-agents-modeled-in-simulink.html#mw_f12b8afc-3bbe-4b01-a523-00240f6b6e7e

Hope this helps!

Regards,

Shuba Nandini

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