UnboundLocalError: local variable 'ext' referenced before assignment about retro

[pacess]

A quick fix for your case, edit /home/luttkule/anaconda3/envs/rl-test/lib/python3.9/site-packages/retro/data/init.py line 401, replace ext with ".md". It should be look like:

known_hashes[sha] = (game, ".md", os.path.join(path(), curpath))

[ll7]

Thank you.

It seems to me that the import is still not successful:

(rl-test) luttkule@LeLuGPC-u:/mnt/UHDD/git/rl-test/nicholas-renotte/streetfighter/roms$ ls
'Street Fighter II'\'' - Special Champion Edition (Europe).md'  'Street Fighter II'\'' - Special Champion Edition (Europe).zip'
(rl-test) luttkule@LeLuGPC-u:/mnt/UHDD/git/rl-test/nicholas-renotte/streetfighter/roms$ python -m retro.import .
Imported 0 games
(rl-test) luttkule@LeLuGPC-u:/mnt/UHDD/git/rl-test/nicholas-renotte/streetfighter/roms$ python -m retro.import 'Street Fighter II'\'' - Special Champion Edition (Europe).md'
Imported 0 games
(rl-test) luttkule@LeLuGPC-u:/mnt/UHDD/git/rl-test/nicholas-renotte/streetfighter/roms$ python -m retro.import .
Imported 0 games
(rl-test) luttkule@LeLuGPC-u:/mnt/UHDD/git/rl-test/nicholas-renotte/streetfighter/roms$ python -m retro.import Street\ Fighter\ II\'\ -\ Special\ Champion\ Edition\ \(Europe\).md
Imported 0 games

[onaclov2000]

I'm not 100% sure but did you make sure your rom.sha matches the file you downloaded? If not you might need to update/create a rom.sha file.