Are you trying to to another program like SFM or Blender, or are you setting up a dedicated server ? Guide :: [Mac] Extracting .gma files - Steam Community
has blocked the ability to extract files from Workshop addons. However, in the world of GMod, "patched" is rarely a permanent wall; it is usually just a change in where files are stored or how the Steam Workshop handles data. gma extractor patched
A "GMA Extractor Patched" typically refers to a modified or updated version of the standard GMad Extractor tool used to unpack Garry’s Mod (.gma) addon files Are you trying to to another program like