Issue with Matlab runtime 2023b: libmwlmgrimpl.dll failed with error: The specified procedure could not be found.

Hi, I compiled a Python package with MATLAB Compiler SDK 2023b. Everything works as expected on the computer where the package was compiled. My issue is with another computer where the MATLAB Runtime as been installed along with the compiled python package. I am using Python 3.11.

This is the error I am getting:

std::exception: Loading C:\Program Files\MATLAB\MATLAB Runtime\R2023b\bin\win64\matlab_startup_plugins\lmgrimpl\libmwlmgrimpl.dll failed with error: The specified procedure could not be found.

Now, I saw some other users with similar issues:

1. https://www.mathworks.com/matlabcentral/answers/375270-why-does-my-matlab-compiler-standalone-application-fail-to-start-with-a-the-operating-system-cannot
2. https://www.mathworks.com/matlabcentral/answers/373411-compiled-application-does-not-run-because-of-startup-plugin-libmwlmgrimpl-dll

My issue cannot be solved like solutions 1 and 2 as I do not have files named SSLEAY32.DLL and LIBEAY32.DLL in my system32 folder. I seem to stumble on something else.

The python code that will throw this error would be something like this:

import mypackage
MyPackage = mypackage.initialize()  # this line throws the error

Now with the very limited message I am getting, I do not know what steps I should take to solve this. I am not admin on this computer and I can get IT support but through a ticket system which can take 1 to 2 day before getting a response. Before writing a ticket, I would like to list all the different possible issues with their solutions so I can get through them with IT when they get available.

Thanks in advance,

[Yuqiu Zhao]

I'm getting the same problem. Reinstallation does not work. I would appreciate any solution to the issue.

[Roberto]

I'm also experiencing the same problem with a compiled app after having upgraded to MCR 2023b and having reinstalled it several times.

Now I went back to the previous MCR version 2023a that still works fine.

[Yuqiu Zhao]

Thank you for sharing the information. I reinstalled 2022a, and that worked.

[CJD]

Same problem for me. Went back to 2022a.

Answer 1

[Christian Pronovost]

I found the issue:

I used dependencies.exe (https://github.com/lucasg/Dependencies) to check on libmwlmgrimpl.dll and I noticed that C:\Windows\system32\kernel32.dll had some missing functions. That lead to checking versions of OS and that was it: The OS is Windows Server 2016 which is not supported anymore by MATLAB Runtime 2023b. I tried with MATLAB 2021b and that worked.

It is just too bad that no warnings were issued at installation of the Runtime and that the error message is unmeaningful. Anyway, problem solved in this case. Thank you.

[Yuqiu Zhao]

Thank you for sharing. It's great to know the reason for the issue.

[Serhii]

I use trial period.

I got same problem.

Only option to handle it - is installing older version of MatLab,

And this option is unavailable for trial type accounts. If I`m not missing something, It feels very bad, empty negative experience.

thank you for sharing method, anyway

[Igor Zanetti]

Thanks for the hint, I got the same error on Windows Server 2016, I will just upgrade it to a newer platform to keep Mathworks suite running. I also confirm that 2021b works perfectly, I haven't tried 2022b though.