Output file missing! error when setting a different cache_directory.

[mauriceljx]

I have made the changes in 682becf and it works fine.

However, changing the cache directory in mpv_thumbnail_script.conf gives the Output file missing! error again.

[aigan]

"--o=" .. output_path

[0Karakurt0]

Erm...
I changed nothing and still got this error

[0Karakurt0]

  71 [   0.033][f][cplayer] Error parsing commandline option o: option requires parameter
  72 [   0.033][w][cplayer] Make sure you're using e.g. '--o=value' instead of '--o value'.
  73 [   0.033][i][cplayer] Exiting... (Fatal error)

[eagerto-learn]

I had the same issue but generating thumbnails with ffmpeg instead of mpv fixed it for me. I only had to add this line to my ~/.config/mpv/lua-settings/mpv_thumbnail_script.conf:
prefer_mpv=no