How to execute an operating system command and return output in matlab app designer with a button?

I have this old matlab gui interface which I imported to the app designer. Here, I was using the command Status=system('OpenSees.exe gravity.tcl'); for a button and it works perfectly.

Now I am trying to recreate this old interface using the new app designer with the same code. But this code doesn't work the same way, as I get the following legend in the command window : 'OpenSees.exe' is not recognized as an internal or external command, operable program or batch file.

The exe file works fine and its located inside the same folder as the code and app code

[Kojiro Saito]

Are you running this app from MATLAB? Or, did you compile it to a standalone app using MATLAB Compiler?

[Heirleking]

The old one was transferred from MATLAB GUI to the new MATLAB App Designer, MATLAB has a tool which allows to export it, but when exporting the code it is different to the one in MATLAB App Designer. The new one was started from scratch using MATLAB App Designer.

[Jan]

The message means, that the OpenSees.exe file is not found. Where is it? Prefer provideing the path:

Status=system('C:\Path\To\Your\OpenSees.exe gravity.tcl');

[Heirleking]

Both the old GUI and the new one with the app designer are on the same folder with the OpenSees.exe file. Why does one run it and the other doesn't? Or is there a different code I have to use for the app designer? I have seen it changes a lot when comparing it to the exported one from GUI.

After restarting MATLAB it ran for both codes