Error: Generated code from your project uses OpenCV and requires that you use a supported C++ compiler. Use 'mex -setup' to select a supported C++ compiler.

I am currently encountering an issue while generating code from my Simulink project. The error message I am receiving is as follows:

"Generated code from your project uses OpenCV and requires that you use a supported C++ compiler. Use 'mex -setup' to select a supported C++ compiler."

I have followed the suggested steps by running the command mex -setup C++ and have ensured that a supported C++ compiler is selected. Additionally, I have installed OpenCV as per the requirements. Despite these efforts, I am still facing the same error when attempting to generate code

Answer 1

[Shivam Lahoti]

Hello,

I understand you're facing an issue with generating code from your Simulink project, and the error message indicates the need for a supported C++ compiler.

I’ve included two links below that list the supported compilers for various MATLAB versions. Please refer to them to ensure that your current C++ compiler is compatible with your specific version of MATLAB:

• Supported compilers for latest release - https://www.mathworks.com/support/requirements/supported-compilers.html
• Supported compilers for previous releases - https://www.mathworks.com/support/requirements/previous-releases.html

I hope this helps to resolve the issue.

Regards,

Shivam.

[Kiran Kumar]

Hello, Thanks for answering.

At first I am getting this error:

"Error:No supported compiler detected. A compiler is required by some simulation modes and code generation workflows.

You can download the MinGW compiler by using Add-On Explorer. Click MATLAB Support for MinGW-w64 C/C++ Compiler.

For a complete list of supported compilers, see https://www.mathworks.com/support/compilers.

After installing a supported compiler, restart MATLAB."

But after installing MATLAB Support for MinGW-w64 C/C++ Compiler I am facing this error.

And I am using MatlabR2024b where it is written "MinGW 8.1 is supported for automatic installation"

or I have to install MinGW 8.1 manually.

[Walter Roberson]

The OpenCV interface requires that you use Visual Studios.

[Kiran Kumar]

Yes I have install visual studio 2022 Community.

But still getting the same error.

Answer 2

[Walter Roberson]

https://www.mathworks.com/help/vision/ug/install-and-use-computer-vision-toolbox-opencv-interface.html

For Windows, you need Microsoft® Visual Studio® 2015 or later (Professional or Community editions)