Hi Fluent users

I'm trying to compile a udf, I have made "libudf" in ntx86,changed makefile_nt to makefile, done set environment in fluent, execute "vcvars32.bat" in command prompt. But when I load the made file this message appears:

Opening library "libudf"... Error: open_udf_library: The system cannot find the file specified. Error Object: ()

If some one can solve this problem that would be greate.

thanks and regards.

Hi there. I am also working with compiled UDFs, but it seems to work in a different way for me. I have written the codes in C (if using C++ remember to change the extension cpp to c). I saved them in my working directory and then recalled them form the compiled UDF panel: click "add" and that opens an explorer window where you can select your files. Then I enter a name for the libudf (in case you want a different one) and then click on "build". In my case Fluent creates the directories required to compile the source files. Finally I click on "load" and the UDF files are ready to be used. This seems to work in my case (Fluent 6.2 for Windows), hope that it helps. Regards. Fernando.

Did you compile the UDF in a C/C++ compiler? I had this trouble once, but I don't know if it realates to your problem. I had a friend compile my UDF and then he sent me the .lib and .dll files. At first I only included the .lib file in my libudf folder and got the error you have, but once I included the .dll file it worked. I don't know if this will help or not.

I use fluent 6.1.18 and vc++ 6. I don't know what are .dll and .lib, could you please explane more? thank you.

The "filename".dll is the dynamic library and "filename".lib is the library file. They are created when you compile your C program.

Thank you Tang,

I reinstalled VC++, and now there is no problem in compiling.

Thanks and regards.