Simulation cannot be saved due to error in callback functions (script-as-function call error)

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Claudius Rosendahl 2022-11-29

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https://ww2.mathworks.cn/matlabcentral/answers/1866283-simulation-cannot-be-saved-due-to-error-in-callback-functions-script-as-function-call-error

回答： Claudius Rosendahl 2022-11-29

I thought it would be smart to use a script to set parameters for my simscape simulation. I put the script in the callback InitFcn. Got an error when saving the simulation. It read "Error evaluation PreSaveFcn call back of <random block in my simulation>. [...]"

I removed the script from the callback function (InitFcn). Still got the same error. O/C I looked into the callback Fcn named in the error (PreSaveFcn), but it is empty.

My simulation cannot be saved anymore. I tried restarting MATLAB to clear the cache. Did not work. This problem can be reproduced by creating a simulation, editing the InitFcn, using a script in it and then saving. You get the error. Then remove the script call from the InitFcn. You should still get the error.

EDIT: I can also no longer run the Simulation.

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Answer 1

Claudius Rosendahl 2022-11-29

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1866283-simulation-cannot-be-saved-due-to-error-in-callback-functions-script-as-function-call-error#answer_1115038

Hotfix: renaming the script that was previously called (and then removed) works. I think this is a bug that needs fixing but I'll accept my own answer for now.