fortran compiler not detected

Hello,

It seems a classical problem:

>> mex -setup

MEX configured to use 'Microsoft Visual C++ 2019 (C)' for C language compilation.

To choose a different language, select one from the following:

mex -setup C++

mex -setup FORTRAN

>> mex -setup FORTRAN

Error using mex

Supported compiler not detected. For options, visit https://www.mathworks.com/support/compilers.

I have installed Intel oneAPI 2023 for Fortran and Microsoft Visual Studio 2019. During the installation a msg from Intel tells me that Desktop development with C++ was missing. Conseqently I have added this component using the Visual Studio Installer as explained.

here is my matlab installation

MATLAB Version: 9.14.0.2206163 (R2023a)

MATLAB License Number: STUDENT

Operating System: Microsoft Windows 10 Professionnel pour les Stations de travail Version 10.0 (Build 19044)

Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode

Many thanks for your help

[jian wang]

Hi, Alain,

I have the same problem. Have you solved it?

Best wishes

Jian

[Alain Barraud]

Not yet !! If a solution is found I'll post it here

best regards

Alain

Answer 1

[Keshav]

Hi Alain,

I understand that you are getting an error “Error using mex: Supported compiler not detected” while using the command “mex -setup FORTRAN” and you have already installed Intel oneAPI 2023 for Fortran and Microsoft Visual Studio 2019.

Try to run the below command in the MATLAB command window.

mex -v -setup fortran

This command will give you the proper reason behind the compiler not found error. From there you can do the needful.

[Alain Barraud]

thanks for your answer.

Matalb tries to find one fortran compatible compiler among alll the possible configuration and ends with:

Did not find installed compiler 'Intel oneAPI 2022 for Fortran with Microsoft Visual Studio 2022'.

... Looking for compiler 'Intel oneAPI 2023 for Fortran with Microsoft Visual Studio 2019' ...

... Looking for environment variable 'IFORT_COMPILER23' ...No.

Did not find installed compiler 'Intel oneAPI 2023 for Fortran with Microsoft Visual Studio 2019'.

... Looking for compiler 'Intel oneAPI 2023 for Fortran with Microsoft Visual Studio 2022' ...

... Looking for environment variable 'IFORT_COMPILER23' ...No.

I have not be asked for any license key during installation. Is thisthe problem?

Best regards

[Alain Barraud]

the installed version is "Visual Studio Community 2019 (version 16.11)"

[Alain Barraud]

it seems that a previous comment has disappeared

the verbose mode ends with

Did not find installed compiler 'Intel oneAPI 2022 for Fortran with Microsoft Visual Studio 2022'.

... Looking for compiler 'Intel oneAPI 2023 for Fortran with Microsoft Visual Studio 2019' ...

... Looking for environment variable 'IFORT_COMPILER23' ...No.

Did not find installed compiler 'Intel oneAPI 2023 for Fortran with Microsoft Visual Studio 2019'.

... Looking for compiler 'Intel oneAPI 2023 for Fortran with Microsoft Visual Studio 2022' ...

... Looking for environment variable 'IFORT_COMPILER23' ...No.

Did not find installed compiler 'Intel oneAPI 2023 for Fortran with Microsoft Visual Studio 2022'.

[Walter Roberson]

I suggest reinstalling the Fortran component, then exit matlab and re-enter matlab and try again

[Alain Barraud]

Nothing new. I am even restart my computer.

Matlab knows that Fortran is installed except it says "is not detected"!!??