Learning Forum

[rexfoxoloughlin]

Hi all, wondering if you could help me with something,nI'm getting two different errors when trying to load the libudf library and compile my UDF in ANSYS. See below for the errors I get.nI'm running ANSYS student.nThings I've tried:nI've added it to the path as specified here: https://www.cfd-online.com/Forums/blogs/trollreign/2036-getting-ansys-14-fluent-windows-8-1-vs2013-compile-udfs.html and also tried all the other solutions on that pagenI've started Fluent through VS2017's common tools command prompt as specified here https://forum.ansys.com/discussion/13927/compiling-udf, gives the same errorsnI've tried a few different UDFs, some simple example ones from online and the ones I've written, to the same errorsnI've completed remade the whole project with new geometry and a new mesh and re-opened it in FluentnI'm trying to get this https://www.ansys.com/blog/dragonfly-flapping-ansys model to work. If anyone could help me it'd be appreciated!nnThe first error when trying to compile/build the libudf:nCopied \Program Files\ANSYS Inc\ANSYS Student\Project Files\Dragonfly 2\dragonfly_2_files\dp0\FFF\Fluent/\Program Files\ANSYS Inc\ANSYS Student\Project Files\Dragonfly 2\dragonfly_2_files\dp0\FFF\Fluent\inlet.c to libudf\srcnCreating user_nt.udf file for 3ddp_host ...n(system copy \Program Files\ANSYS Inc\ANSYS Student\v202\fluent\fluent20.2.0\src\udf\makefile_nt.udf libudf\win64\3ddp_host\makefile )n1 file(s) copied.n(chdir libudf)(chdir win64\3ddp_host)'nmake' is not recognized as an internal or external command,noperable program or batch file.nCreating user_nt.udf file for 3ddp_node ...n(system copy \Program Files\ANSYS Inc\ANSYS Student\v202\fluent\fluent20.2.0\src\udf\makefile_nt.udf libudf\win64\3ddp_node\makefile )n1 file(s) copied.n(chdir libudf)(chdir win64\3ddp_node)'nmake' is not recognized as an internal or external command,noperable program or batch file.nnDone.nCopied \Program Files\ANSYS Inc\ANSYS Student\Project Files\Dragonfly 2\dragonfly_2_files\dp0\FFF\Fluent/\Program Files\ANSYS Inc\ANSYS Student\Project Files\Dragonfly 2\dragonfly_2_files\dp0\FFF\Fluent\inlet.c to libudf\srcn(system copy \Program Files\ANSYS Inc\ANSYS Student\v202\fluent\fluent20.2.0\src\udf\sconstruct.udf libudf\win64\3ddp_host\SConstruct )n1 file(s) copied.n(system copy \Program Files\ANSYS Inc\ANSYS Student\v202\fluent\fluent20.2.0\src\udf\scons_test.bat libudf\win64\3ddp_host\scons_test.bat )n1 file(s) copied.n(chdir libudf)(chdir win64\3ddp_host)nD:\Program Files\ANSYS Inc\ANSYS Student\Project Files\Dragonfly 2\dragonfly_2_files\dp0\FFF\Fluent\libudf\win64\3ddp_host>set PYTHONHOME=\Program Files\ANSYS Inc\ANSYS Student\v202\fluent/../commonfiles/CPython/3_7/winx64/Release/pythoD:\Program Files\ANSYS Inc\ANSYS Student\Project Files\Dragonfly 2\dragonfly_2_files\dp0\FFF\Fluent\libudf\win64\3ddp_host>set PYTHONPATH=\Program Files\ANSYS Inc\ANSYS Student\v202\fluent/../commonfiles/CPython/3_7/winx64/Release/pythoD:\Program Files\ANSYS Inc\ANSYS Student\Project Files\Dragonfly 2\dragonfly_2_files\dp0\FFF\Fluent\libudf\win64\3ddp_host>\Program Files\ANSYS Inc\ANSYS Student\v202\fluent/../commonfiles/CPython/3_7/winx64/Release/python/sconsn'\Program' is not recognized as an internal or external command,noperable program or batch file.n(system copy \Program Files\ANSYS Inc\ANSYS Student\v202\fluent\fluent20.2.0\src\udf\sconstruct.udf libudf\win64\3ddp_node\SConstruct )n1 file(s) copied.n(system copy \Program Files\ANSYS Inc\ANSYS Student\v202\fluent\fluent20.2.0\src\udf\scons_test.bat libudf\win64\3ddp_node\scons_test.bat )n1 file(s) copied.n(chdir libudf)(chdir win64\3ddp_node)nD:\Program Files\ANSYS Inc\ANSYS Student\Project Files\Dragonfly 2\dragonfly_2_files\dp0\FFF\Fluent\libudf\win64\3ddp_node>set PYTHONHOME=\Program Files\ANSYS Inc\ANSYS Student\v202\fluent/../commonfiles/CPython/3_7/winx64/Release/pythoD:\Program Files\ANSYS Inc\ANSYS Student\Project Files\Dragonfly 2\dragonfly_2_files\dp0\FFF\Fluent\libudf\win64\3ddp_node>set PYTHONPATH=\Program Files\ANSYS Inc\ANSYS Student\v202\fluent/../commonfiles/CPython/3_7/winx64/Release/pythoD:\Program Files\ANSYS Inc\ANSYS Student\Project Files\Dragonfly 2\dragonfly_2_files\dp0\FFF\Fluent\libudf\win64\3ddp_node>\Program Files\ANSYS Inc\ANSYS Student\v202\fluent/../commonfiles/CPython/3_7/winx64/Release/python/sconsn'\Program' is not recognized as an internal or external command,noperable program or batch file.nnDone.nnAnd then another when I click load:nnError: 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.nD:\Program Files\ANSYS Inc\ANSYS Student\Project Files\Dragonfly 2\dragonfly_2_files\dp0\FFF\Fluent\libudf\win64\3ddp_host\libudf.dllnError Object: #fn

[Mawen]

I think you got the nmake error. Do you have visual studio 2017 installed? nFollow this video, that should solve the problem:

&t&ab_channel=CatherineWaan

[rexfoxoloughlin]

I think you got the nmake error. Do you have visual studio 2017 installed? Follow this video, that should solve the problem:

&t&ab_channel=CatherineWaahttps://forum.ansys.com/discussion/comment/100066#Comment_100066

I do have VS2017 yes.n

[Rob]

If you're running 2020 use the built in compiler. A missing nmake means there's a path/system variable that's not pointing in the right place, if you look for nmake in here and the installation threads there will be some guidance. n