C1189 #error: Using MATLAB Data API with C Matrix API is not supported.

Hey,

I am trying to replicate this tutorial with Matlab R2025a, UE 5.32 and Visual Studio 2022. I am getting the following error in Visual Studio at step 6, when I click "build".

C1189 #error: Using MATLAB Data API with C Matrix API is not supported.

I saw some previous posts discussing the same issue and the solution was the update to a new release. However, I have the latest release.

Best,

Filippos

[Kory]

The suggested fix worked for me too in a similar use case.

Answer 1

[Nishan Nekoo]

Hi Filippos,

Thank you for reaching out about this error! It is unfortunate that this has been a recurring issue as we update the product from release to release, but the development team is trying to investigate the deeper underlying issue and hopefully implement a more lasting fix in a future release.

For now, in R2025a, the following workaround might help resolve this error:

In the following file that we install with our plugin: C:\Program Files\Epic Games\UE_5.3\Engine\Plugins\Marketplace\MathWorks\MathWorksSimulation\Source\MathWorksSimulation\Public\Sim3dInterface.h

Please replace line 7

#include "Engine.h"

with the following instead:

#include "Engine/Engine.h"

Please let me know if this resolves the error for you. If it doesn't, we'd be happy to investigate it more.

Thanks,

Nishan