fortran expression evaluator doesn install

[marinoni__andrea_mas]

Hi All,

I have debugging issue (i cannot see variables in the debugger), I tried installing the fortran expression evaluator from the VS extensions, the installations seems ok but then the extension is actually not installed when i restart VS.

How can I force the installation to succeed ? It seems the installations fails withhout saying nothing.

Bets regards,

[Igor_V_Intel]

It appears that there is an issue with FFE integration in certain cases. I escalated the problem to the development team. Could you please share a bit more details, for example, which exact VS you have, and whether any older compiler versions are installed/uninstalled? You can also share a VSIXInstaller log file, which is located in %TEMP% (e.g. dd_VSIXInstaller_20251218161402_a208.log)

[marinoni__andrea_mas]

Dear Igor,
thank you. I am on windows10, latest, have installed VS 19 Enterprise 17.14.23 and VS 22 Enterprise 16.11.53 (the latest of both).

I have currently installed intel one api BASE and HPC toolkit (latest - all components selected hence  the intel fortran compiler 2025.3.0 included with it.

I also have installed standalone intel fortran compiler 2024.2.1 and 2024.1.0 which i was keeping since debugging was working when using those compiler in the past.

I attache the FEE installer log file.
Andrea

[Igor_V_Intel]

Note that you need to click on the Install button under  Extensions -> Manage Extensions -> Intel® Fortran Expression Evaluator, and then close VS to start the installation process of the extension (via VSIX installer). It displays a progress bar and an error message (in case it crashes).

[Igor_V_Intel · Accepted solution]

On some machines, we have observed an issue where the installation of the Fortran Expression Evaluator (FEE) completes without any errors, but the extension does not appear as installed in Visual Studio.

In such cases, repairing the Visual Studio installation typically resolves the problem. To do this, open the Visual Studio Installer, run a Repair on your Visual Studio 2022 installation, and then verify that FEE is listed as installed in the Extension Manager.