# Debug Library for pre-compiled OCC 6.3

Hi guys,
I downloaded the pre-compiled OCC 6.3 for Windows and realized that it didn't have /ros/wi32/libd (/lib is there).
I'm pretty new to OCC. Do you reckon this is normal or something missing here? If so, might I kindly ask for some advise please? Should I download source code and compile or might I be able to get a copy of libd from somewhere?
Thanks

Hi Ha Le,

there are no pre-compiled debug libraries in the OCC distribution. So you have to compile them yourself.

Pawel

it is a mistake here£º"libd" or "lib"