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I get the error 'Changing property 'UnconnectedLineMsg' is not allowed ' when using a block from the MATLAB and Simulink Robotics Playground

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MathWorks Student Competitions Team
Answered: MathWorks Student Competitions Team on 27 May 2021
When creating or running a model using the MATLAB And SImulink Robotics toolbox, I get the following error:
Error evaluating 'InitFcn' callback of block_diagram 'untitled'. Callback string is 'RPInit'
Caused by:
  • Changing property 'UnconnectedLineMsg' is not allowed

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Accepted Answer

MathWorks Student Competitions Team
To fix the error, go to the Simulink model settings and set the UnconnectedLineMsg connectivity diagnostic to 'none'. See how to do it in the picture below:

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