Run .slx file in MATLAB script

[CMun]

I have the following problems to interface Matlab code in LabVIEW MATLAB script.

1) I try to run the ".m" Math script file in MATLAB script.

It includes the sim function to run the ".slx" Simulink file in the Math script.

2) I try to use the sim function in MATLAB script.

There is the same file location. Also, I already add the file path as well.

how can I solve it?

It is the video that I referenced. 

https://www.youtube.com/watch?v=sF_sjFqNFUk