[daniel_pramudita]

Dear all,

I am trying to compile a UDF file (in C) provided in a Fluent tutorial package, but using TUI (not the GUI), as explained in the help documentation.
The reason I chose this way is because the compiling process (building the libudf folder and files) always failed.

I set up the folder structure, then copied and modified the user_nt.udf and Makefile files. I tried to run the nmake procedure (by executing work_dir\libudf\win64\2ddp>nmake in the developer command prompt for VS), but then the following error message was shown:

makefile(50): Error(E33): You need to define the environmental variable FLUENT_INC.
You seem to be working on 64-bit machine, but in a 32-bit build environment.
If you really want to build the UDF for the "ntx86" FLUENT_ARCH, then please set the "FLUENT_ARCH" environment variable to "ntx86" before calling this.
makefile(71): Error(E33): Aborting.
Error(E02): Make execution terminated.

I think it is related to platform compatibility. I am using Fluent 17.2 in Windows 10.
(I installed the Visual Studio 2017, but the nmake was executed by Open Watcom C/C++ NMAKE Clone, probably due to the fact that I had it installed before I installed the VS 2017.)

I don't understand how I can set that FLUENT_ARCH environment variable. I open the Environment Variables from Advanced System Settings, but I cannot find the FLUENT_ARCH entry and have no idea where to find the "ntx86".

Really appreciate if ones can help.

Daniel

[LuckyTran]

Originally Posted by daniel_pramudita

I don't understand how I can set that FLUENT_ARCH environment variable. I open the Environment Variables from Advanced System Settings, but I cannot find the FLUENT_ARCH entry and have no idea where to find the "ntx86".

Probably you cannot find it because it was never created during installation and hence your error. You need to create a env var called FLUENT_ARCH in the Variable name box.

Then in Variable value put ntx86

You can do this as a user var or a system var.

You might need to log out and log in again before the changes have any effect.

[daniel_pramudita]

Hi Tran,

Thank you. I did a fresh start of Windows to get rid of all MS C++ and Visual Studio (so many of them already) and reinstalled the program as you suggested. It worked well.

Daniel