Dear all,
I'm getting the following error when compiling the UDF in fluent. Does anyone have any idea why? I'm using ANSYS 18.2 and VS 2017.
'xcopy' is not recognized as an internal or external command, operable program or batch file. Copied M:\Transient_Simulation -2018/M:\Transient_Simulation -2018\my_function.c to libudf\src Creating user_nt.udf file for 3ddp_host ... (system "copy "C:\PROGRA~1\ANSYSI~1\v182\fluent"\fluent18.2.0\sr c\udf\makefile_nt.udf "libudf\win64\3ddp_host\makefile" ") 1 file(s) copied. (chdir "libudf")(chdir "win64\3ddp_host")Creating user_nt.udf file for 3ddp_node ... (system "copy "C:\PROGRA~1\ANSYSI~1\v182\fluent"\fluent18.2.0\sr c\udf\makefile_nt.udf "libudf\win64\3ddp_node\makefile" ") 1 file(s) copied. (chdir "libudf")(chdir "win64\3ddp_node") Done.
Opening library "M:\Transient_Simulation -2018\libudf"... Error at host: The UDF library you are trying to load (libudf) is not compiled for parallel use on the current platform (win64).
The system cannot find the file specified.
M:\Transient_Simulation -2018\libudf\win64\3ddp_host\libudf.dll
Error at Node 0: The UDF library you are trying to load (libudf) is not compiled for parallel use on the current platform (win64).
The system cannot find the file specified.
M:\Transient_Simulation -2018\libudf\win64\3ddp_node\libudf.dll
Error: The UDF library you are trying to load (libudf) is not compiled for parallel use on the current platform (win64).\n\nThe system cannot find the file specified. \n\nM:\Transient_Simulation -2018\libudf\win64\3ddp_host\libudf.dll Error Object: #f
Your help is much appreciated.
I think that you make your udf_file in the starter file and first star your programe in a serial use .
Lalmi Djemoui ,
Hi Lalmi, thank you for your answer. what do you mean by starter file?, how to fix this?
I tried both serial and parallel and got same error.
Regards
Oula
Do you mean the PATH? I have set it correctly in the environment variables, see below.
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\Tools;
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC;
C:\Program Files\ANSYS Inc\v182\fluent\ntbin\win64;
From the error message you have posted, I think you have used a command 'xcopy', which is not compatible with the Fluent.
Check your UDF for any syntax errors. You can do this by removing some lines of code at time and try compiling the UDF. Do this till the end of the code to check which part of the UDF is actually causing you this trouble. Once identified, try to correct it.
Dear Siva Teja Golla , Thank you for your answer. I tried with very simple function with no syntax errors. I first interpreted the function and everything was fine and no errors came out. However, when I tried to compile the same function I had the "xcopy" error.
Regards
Dear @Ahmadreza Haghnegahdar , thank you for your answer. Yes I have the VS installed in my computer.
The function that I intend to use can't be interpreted, as one of the functions is a monitoring function and must only be compiled to work.
Regards
Hi Oula Fatla, did you try to launch Fluent from the VS command window?
Hi Ahmadreza Haghnegahdar , Yes I have tried this as well. See video below.
https://www.youtube.com/watch?v=xt2hnE9_LdM&lc=z230wdny3yqwdf2y004t1aokgotsclzxfp5jetjrb2a3rk0h00410.1540346039732132
Hi friends,
I have solved the problem, with help of some friends and ANSYS team, and I would like to share the solution with you.
So, it is all about setting the correct environment variables:
Start>Control panel>System>Advance system settings>Advanced>Environment Variables> System Variables> PATH
In the PATH> variable value write: P.S. Adjust this entry to your system concerning the installation directories!
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\Tools;
C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC;
C:\Program Files\ANSYS Inc\v182\fluent\ntbin\win64;
the problem still exists after all these changes in the path variable!!! go back again to the PATH and confirm PATH environment variable has the following settings at the BEGINNING: %SystemRoot%\system32;%SystemRoot%, see below the complete value.
%SystemRoot%\system32;%SystemRoot%;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\Tools;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC;C:\Program Files\ANSYS Inc\v182\fluent\ntbin\win64;
But, wait the problem is still there .......WHAT, OH NO?
OK, now restart your computer
BINGO, the problem has been solved
Links below helped me to understand the problem and develop the solution
https://www.youtube.com/watch?v=xt2hnE9_LdM&lc=z230wdny3yqwdf2y004t1aokgotsclzxfp5jetjrb2a3rk0h00410.1540346039732132
https://www.cfd-online.com/Forums/fluent/197667-compile-fluent-udf-windows-10-a.html
https://www.cfd-online.com/Forums/fluent/107467-nmake-not-recognized-internal-external-command.html#post710507
https://stackoverflow.com/questions/17273427/xcopy-is-not-recognized-as-an-internal-or-external-command-operable-program-or
Thank you
Regards
Oula
Hi Oula,
I have suffered the problem for 1 week already. Really need your advice. I am using a windows10 and ansys fluent 19.2. I have installed the visual studio community 2017. Also, I have set the environment variable as u set. However, it still not work. I am wondering when I set up the variable, is it a user variable or system variable?
%SystemRoot%\system32;%SystemRoot%;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\Tools;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC;C:\Program Files\ANSYS Inc\v192\fluent\ntbin\win64;
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