Simulink could not detect an installed compiler though MATLAB Support for MinGW-w64 C/C++ Compiler installed

Hello everyone,

I have installed MATLAB Support for MinGW-w64 C/C++ Compiler downloaded from MATLAB file exchange. MATLAB coder and Simulink Coder are also installed successfully. However, when I tried to compile a Simulink model it told me that "an installed compiler was not detected". MATLAB and Simulink have also been restarted after I installed the compiler.

MATLAB has version R2018b.

It would be highly appreciated if you could provide any suggestions or solutions to this problem. Thank u :)

[Vinai Datta Thatiparthi]

Hello Han,

What's the output of this line of code from the command window -

mex -setup c
mex -setup c++

[Han Wang]

Thank you for your response.

The outputs are as follows:

MEX configured to use 'MinGW64 Compiler (C)' for C language compilation.
Warning: The MATLAB C and Fortran API has changed to support MATLAB
	 variables with more than 2^32-1 elements. You will be required
	 to update your code to utilize the new API.
	 You can find more information about this at:
	 https://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html.
MEX configured to use 'MinGW64 Compiler (C++)' for C++ language compilation.
Warning: The MATLAB C and Fortran API has changed to support MATLAB
	 variables with more than 2^32-1 elements. You will be required
	 to update your code to utilize the new API.
	 You can find more information about this at:
	 https://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html.
  

BTW, will the system target file in Simulink configuration make a difference in this problem?

Thank u if you could share more on this subject.

Answer 1

[Vinai Datta Thatiparthi]

Hi Han,

It seems like you do have a compiler installed.

Here's a link to an answer that resolves the same issue that you describe: https://www.mathworks.com/matlabcentral/answers/92585-why-do-i-receive-the-error-message-an-installed-compiler-was-not-detected-when-compiling-a-model-f

Additionally, here's a link to all the supported and compatible compilers and their configuration: https://www.mathworks.com/support/requirements/supported-compilers.html

Hope this helps!

[Han Wang]

Hi Thatiparthi,

Thank you for answering.

I have noticed in the page you provided about the similar issue that if I am attempting Simulink Real Time, MinGW will not work. Does this still exist for R2018b version? I discovered that there was only "Code generation" in settings/configuration of Simulink. Are they the same? (Sorry about a poor knowledge concerning the product)

Could I install Visual Studio C++ for compiler instead when MinGW isn't compatible?

[Vinai Datta Thatiparthi]

Hey Han,

If you look at the second link that I posted (list of Supported and Compatible Compilers) for the Simulink Product family, you'll notice that MinGW is not a compatible compiler for Simulink Real Time. That's why you get the error. Microsoft Visual C++ would be required to run Simulink Real Time. The original question that you posted was regarding MATLAB/Simulink, for which MinGW works fine.

Hope this helps!