Unrecognized function or variable 'showDetailsAnyFormat'

I'm participating on the Robocup ARM Challenge and while a was running this example the following errors ocurred:

Unrecognized function or variable 'showDetailsAnyFormat'.

Error in ros.internal.action.SimpleActionClientParser>@(~,res)disp(['Final state ',res.State,' with result: ',showDetailsAnyFormat(res.Message)]) (line 154)

showDetailsAnyFormat(res.Message)]);

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Error in ros.SimpleActionClient/processResultCallback (line 637)

feval(obj.ActualResultFcn, obj, res, obj.ResultFcnUserData{:});

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Error in ros.internal.ActClientCallbackHandler/onResultReceivedCallbackFcn (line 25)

processResultCallback(obj.ActClientWeakHandle.get, msg, info, state);

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

This funciton is called inside the ROS Toolbox. File :

"C:\Program Files\MATLAB\R2024b\toolbox\ros\mlroscpp\+ros\+internal\+action\ISimpleActionClientParser.m"

I couldn't find any documentation on this function online. Should I implement it like and overload in C++? Is it a bug? Did MathWorks missed it?

Thanks in advance

[Cris LaPierre]

Can you confirm that you have the ROS Toolbox installed? Type 'ver' in your command window and share the results.

[Matheus]

Yes, it's installed

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MATLAB Version: 24.2.0.2863752 (R2024b) Update 5

MATLAB License Number: 41******21

Operating System: Microsoft Windows 11 Pro Version 10.0 (Build 26100)

Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode

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Answer 1

[Jose Avendano Arbelaez]

Looks like there might an issue with the obtaining the action result. If you don't need to obtain the result, for now you can set the result function for the action servers to empty []. That should bypass the error.

gripAct.ResultFcn = [];

trajAct.ResultFcn = [];

We updated the RoboCup ARM templates with those changes in the link below:

https://github.com/mathworks-robotics/templates-robocup-robot-manipulation-challenge/tree/main/MATLAB_Simulink_Templates/2025

[Matheus]

Hello, Jose!

It worked. Thank you!

Is there any tutorial available on how to set a custom callback? I couldn't find it here: https://www.mathworks.com/help/ros/ref/simpleactionclient.html