Does the machine have an FFAStrans internet connection? It told me the same message if I had to have a proxy set up.
Ideally try downloading directly through the youtube-dl.exe file in the directory (e.g. C:\Program Files\FFAStrans\Processors\ffmpeg) using the bat file: "C:\Program Files\FFAStrans\Processors\ffmpeg\youtube-dl.exe" -f bestvideo+bestaudio filename"
or with proxy
"C:\Program Files\FFAStrans\Processors\ffmpeg\youtube-dl.exe" --proxy "http://IP_adress:port" -f bestvideo+bestaudio filename"
I have another problem and I will not create a new thread for it, it is also useful here:
video source
https://www.youtube.com/watch?v=8uYG3dQt-RQ
if i testing in BAT file:
"C:\Program Files\FFAStrans\Processors\ffmpeg\youtube-dl.exe" --proxy "http://myproxy:port" --restrict-filenames -f bestvideo+bestaudio https://www_youtube_com/watch?v=8uYG3dQt-RQ
then output from youtube-dl:
PO_KRADE_I_KABELKY_VLA_EL_PRODAVA_KU_PO_ZEMI-8uYG3dQt-RQ.f135.mp4
PO_KRADE_I_KABELKY_VLA_EL_PRODAVA_KU_PO_ZEMI-8uYG3dQt-RQ.f140.m4a
OR
"C:\Program Files\FFAStrans\Processors\ffmpeg\youtube-dl.exe" --proxy "http://myproxy:port" --merge-output-format mp4 --ffmpeg-location "C:\Program Files\FFAStrans\Processors\ffmpeg\x64\ffmpeg.exe" --restrict-filenames -f bestvideo+bestaudio https://www_youtube_com/watch?v=8uYG3dQt-RQ
then output is: PO_KRADE_I_KABELKY_VLA_EL_PRODAVA_KU_PO_ZEMI-8uYG3dQt-RQ.mp4
if I set the url address to a shortcut (.url) and process it in FFAStrans -> Folder (url file) -> Youtube Decoder (in config file is):
# Restrict filenames to only ASCII characters, and avoid "&" and spaces in filenames
--restrict-filenames
# Use this proxy
--proxy "http://myproxy:port"
output from youtube-dl (Youtube decoder) is file "PO KRÁDEŽI KABELKY VLÁEL PRODAVAKU PO ZEMI.mp4" -> there is a problem with non-standard ASCII characters in the next process (e.g. ě š č ř ž ý á í é ú ů)
the settings in the configuration file do not work --restrict-filename, the output file name is fixed according to --get-title ???