[ChaoLW]

Hi, everyone! I am working on udf in Fluent recently. Ansys fluent 2021r2, vs 2019 professional.

I faced this "Error at host: Error code:126" problem while loading the libudf.
Does anyone have any clue how to solve this problem?
I deleted the folder "libudf" and recompile it, it doesnt works.

Thanks a lot.

[AlexanderZ]

udf was compiled in other fluent version

you should compile it again,even though you say its not a solution -> you didn't recompile probably

[ChaoLW]

Originally Posted by AlexanderZ

udf was compiled in other fluent version

you should compile it again,even though you say its not a solution -> you didn't recompile probably

Thanks for your reply!
Here is the message from Ansys Fluent:
....
Microsoft (R) C/C++ Optimizing Compiler Version 19.28.29336 for x64
Copyright (C) Microsoft Corporation. All rights reserved.

udf_names.c
# Linking libudf.dll because of makefile user_nt.udf udf_names.obj edc-scale.obj
link /Libpath:"D:\Program Files\ANSYS Inc\v212\fluent"\fluent21.2.0\win64\2ddp_node /Libpath:"D:\Program Files\ANSYS Inc\v212\fluent"\fluent21.2.0\multiport\win64\mpi\ shared /dll /out:libudf.dll udf_names.obj edc-scale.obj mport.lib fl_mpi2120.lib
Microsoft (R) Incremental Linker Version 14.28.29336.0
Copyright (C) Microsoft Corporation. All rights reserved.

Creating library libudf.lib and object libudf.exp

Done.

DESKTOP-6CP1L1E: Opening library "D:\P.Marge et al\ukomega\Frolov4.edc.2016\libudf"...
Error at host: Error code: 126


Error: Error code: 126\n
Error Object: #f

I also attach the .c file below.
Is there something wrong with the compilation?

[ChaoLW]

Problem solved.

It's hard to know why. But I uninstall the 2021r2 and install 2019 version. UDF is successfully loaded.