Error : 'openssl' is not recognized as an internal or external command, operable program or batch file.- while compiling simulink model.

I got below error while compiling simulink model which internally calls cpp file.

Making simulation target "detectFatigue_simulink_sfun", ...

'openssl' is not recognized as an internal or external command, operable program or batch file. Component: Make | Category: Make error Unable to create mex function 'detectFatigue_simulink_sfun.mexw64' required for simulation. Component: Simulink | Category: Model error

code snippet: function y = fcn(R,G,B) %#codegen % img = cat(3,R,G,B); img = cat(3,R,G,B); y=0; y = coder.ceval('detectFatigue',img);

Can someone help plz.

[Walter Roberson]

Duplicated by later https://www.mathworks.com/matlabcentral/answers/334538-error-openssl-is-not-recognized-as-an-internal-or-external-command-operable-program-or-batch-f