gmod file list verification fail meaning

The workshop item is uploaded as a blank project with no description, name or icon when I got these two errors meaning that the map is being uploaded but the actual content isn't being uploaded to Steam. I have also used GMPT, but that too produces an error: 'WARNING! Creation failed.' I am not sure if it's something wrong with my computer, my GMA/BSA map files or Steam itself. I have followed several youtube and steam tutorials, all of which net me the same result. I'm not sure what this means or where I went wrong. I successfully made a GMA file and have an icon ready for the addon but everytime I attempt to upload to the workshop, the command prompt comes up with the error: 'Updated Failed! Generic Failure.' I have tried uploading the map to the workshop using several means, but recently tried to used Gmad and Gmpublish through my Windows 10 command prompt. WARNING Creation of GMA Failed Finished running queue.

File list verification failed Deleting temporary addon.json.

The program doesn't work and just spits out an error, which is below. I am having trouble uploading my first map to Gmod from Hammer and I can't find any information on why this is. No I don't mean GMOD, I mean the little program in the bin folder that turns a folder into a.

Gmod file list verification fail meaning