# #ifdef

what is this?

#ifdef

#endif

build:
error S0021 : Label field of continuation line is not blank

Hi eggbaby123456,

I’m assuming that your file’s suffix is “.f”, i.e. Fixed format, no preprocessing, since this error occurs when you have fixed formatted file where the statement starts before column 7.

Either change your suffix to “.F”, i.e. Fixed format with preprocessing enables, or add the flag “-Mpreprocess” to enable preprocessing.

If you are on Windows, you will need to use “-Mpreprocessing” since Windows file system is not case sensitive and thus can’t differentiate between “.F” and “.f”.

Hope this helps,
Mat