hi i am compiling a udf but facing the problem as below

when i am clicking in source file 1st time following error

Error: wta(1st) to string_length Error Object: ()

but sencond time it is taking file and same the case for header file as follow

Error: wta(1st) to string_length Error Object: () after that if i click build and load following error coming

The system cannot find the file specified. The system cannot find the file specified. The system cannot find the file specified. The system cannot find the file specified.

1 file(s) copied. The system cannot find the file specified.

1 file(s) copied.

1 file(s) copied. (system "move user_nt.udf delete2\ntx86\2d")0 (system "copy C:\Fluent.Inc\fluent6.1.22\src\makefile_nt.udf delete2\ntx86\2d\makefile") 1 file(s) copied. 0 (chdir "delete2")() (chdir "ntx86\2d")() 'nmake' is not recognized as an internal or external command, operable program or batch file. 'nmake' is not recognized as an internal or external command, operable program or batch file.

Done.

Opening library "delete2"... Error: open_udf_library: The system cannot find the file specified.

Error Object: ()

i have installed VC++

HOW TO SOLVE IT

AMMI REDDY

about the "nmake", you may check the environmental variables(control panel\system\advanced\