fluent nmake error
 

hello friend, so im using this fluent 6.3.26 and a couple moths ago i wanted to compile this UDF file and i this error ' nmake is not recognized as an internal or external command ' . ever since im looking for a solution. i have tried installing visual studio 2017 and the prompt but it just gave me this other error ' 1 file(s) copied.
(chdir "libudf")()
(chdir "ntx86\2ddp")()
ren1.c
c:\fluent.inc\fluent6.3.26\src\config.h(119): error C2143: syntax error: missing '{' before ':'
c:\fluent.inc\fluent6.3.26\src\config.h(119): error C2059: syntax error: ':'
C:\Fluent.Inc\fluent6.3.26\cortex\src\dll.h(58): error C2061: syntax error: identifier 'CX_DLL_GetProc'
C:\Fluent.Inc\fluent6.3.26\cortex\src\dll.h(58): error C2059: syntax error: ';'
C:\Fluent.Inc\fluent6.3.26\cortex\src\dll.h(58): error C2059: syntax error: '<parameter-list>'
'
by the way im using windows 10 and my system is 64bit
im devastated, i would appreciate i you can help me.