MATLAB: Do I receive an error regarding EXIST function when calling SLUPDATE for a model in Simulink

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When calling the SLUPDATE function for a model, I receive the following error regarding EXIST function:
slupdate(my_model);
 ??? Error using ==> exist
 The first input to exist is a string.
 Error in ==> slupdate>locForceSysOpen at 385
 if exist(sys,'file') == 4,
 Error in ==> slupdate at 52
 [isLibrary, closeSimulink] = locForceSysOpen(sys);

Best Answer

This error occurs if you are calling SLUPDATE using parentheses and the model name without apostrophes. The correct syntax would be, for example:
slupdate('my_model')
or:
slupdate my_model
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