Executable build with Matlab Application Compiler returns error: Undefined variable "Simulink" or class "Simulink.Parameter"

Question

Stefan Wahlig 2022-8-3

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https://ww2.mathworks.cn/matlabcentral/answers/1773305-executable-build-with-matlab-application-compiler-returns-error-undefined-variable-simulink-or-cl

回答： Rishav 2023-9-12

Hello together,

I'm building a Standalone Application with the Matlab Application Compiler based on matlab scripts. In one matlab script a parameter is set as a Simunlink.Parameter object like this:

function SetSimulinkParameter(name, value)

tmp = Simulink.Parameter;

if isnumeric (value)

tmp.Value = value;

tmp.DataType = 'double';

tmp.DocUnits = '';

tmp.Description = '';

tmp.Min = -1e10;

tmp.Max = 1e10;

tmp.CoderInfo.StorageClass = 'Model default';

assignin('base',name,tmp);

end

When running the Standalone application, the following error pops up: Undefined variable "Simulink" or class "Simulink.Parameter". The error points to the second line:

tmp = Simulink.Parameter;

When running the matlab script in Matlab, the scripts works fine.

How can I build a Standalone Application, that sets and reads Simulink.Parameter objects?

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Stefan Wahlig 2022-9-2

Hi,

no. not yet.

Best regards

Stefan Wahlig 2022-9-15

We think, that this error appears, because the Matlab compiler cannot compile Simulink functions. Therefore the Simulink compiler is needed.

However the Matlab Application Compiler uses the mcc - Matlab compiler and not the Simulink Compiler. We will replace the Simulink.Parameter object by a struct.

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