MATLAB: Does System.Dia​gnostics.P​rocess not work? Matlab and .Net-Framework Problem

Question

Hello Community,

i am trying to use some Functions that use System.Diagnostics.Process (e.g. sim3d.Engine.engine, Vehicle Dynamics Blockset). This used to work on my Notebook and Desktop. However since i updated one PC to the newest Windows Version 1903, functions with System.Diagnostics.Process dont work on this machine anymore. I assume it has something to do with the .Net Framework. I tried a clean re-install of windows 10, but the problem persists. I compered both .Net Installations (regedit) and they seem to be identical.

This is the actual function i want to use:

>> sim3d.Engine.engine
Error using sim3d.Engine/setup                                                          %this should be red (error)

Invalid default value for property 'engine' in class 'sim3d.Engine':                    %this should be red



No method 'Start' with matching signature found for class 'System.Diagnostics.Process'. %this should be red
Error in sim3d.Engine                                                                   %this should be red

And this is the general approach to run System.Diagnostics.Process

A = NET.isNETSupported
notepad = System.Diagnostics.Process();
notepad.StartInfo.FileName = "notepad.exe";
notepad.StartInfo.UseShellExecute = false;
notepad.StartInfo.CreateNoWindow = true;
notepad.Start;

The result:

A =
   1
No method 'Start' with matching signature found for class 'System.Diagnostics.Process'.   %this should be red (error)
The actual function i want to use:                                                        %this should be red

So what exact Version of the .Net-Framework is required for Matlab? Maybe the Problem is the relativly new Framework 4.8? Or could it be that the path /variable to the .Net directory is messed up? Im out of ideas.

Thanks, Mathias

Answer 1

The Bug has been fixed.

Solution is on Bug Report 2075910 (Link):

https://de.mathworks.com/support/bugreports/2075910