WARNING: Assuming --restrict-filenames since file system encoding cannot encode all characters. Set the LC_ALL environment variable to fix this.

[itskando]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2019.05.11
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar bug reports including closed ones
• I've read bugs section in FAQ

Verbose log

root@plex:~ # python3 /usr/local/bin/youtube-dl --update
WARNING: Assuming --restrict-filenames since file system encoding cannot encode all characters. Set the LC_ALL environment variable to fix this.
Updating to version 2019.05.11 ...
Updated youtube-dl. Restart youtube-dl to use the new version.

root@plex:~ # python3 /usr/local/bin/youtube-dl --version
2019.05.11

root@plex:~ # python3 /usr/local/bin/youtube-dl "https://vimeo.com/133021237" -v 
[debug] System config: ['--add-metadata', '--embed-thumbnail', '-o', '/media/movies/youtube-dl/%(title)s.%(ext)s']
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['https://vimeo.com/133021237', '-v']
WARNING: Assuming --restrict-filenames since file system encoding cannot encode all characters. Set the LC_ALL environment variable to fix this.
[debug] Encodings: locale US-ASCII, fs ascii, out US-ASCII, pref US-ASCII
[debug] youtube-dl version 2019.05.11
[debug] Python version 3.6.8 (CPython) - FreeBSD-11.2-STABLE-amd64-64bit-ELF
[debug] exe versions: ffmpeg 4.1.3, ffprobe 4.1.3
[debug] Proxy map: {}
[vimeo] 133021237: Downloading webpage
[vimeo] 133021237: Extracting information
[vimeo] 133021237: Downloading webpage
[vimeo] 133021237: Downloading JSON metadata
WARNING: Unable to download JSON metadata: HTTP Error 403: Forbidden
[vimeo] 133021237: Downloading akfire_interconnect_quic m3u8 information
[vimeo] 133021237: Downloading fastly_skyfire m3u8 information
[vimeo] 133021237: Downloading akfire_interconnect_quic MPD information
[vimeo] 133021237: Downloading akfire_interconnect_quic MPD information
[vimeo] 133021237: Downloading fastly_skyfire MPD information
[vimeo] 133021237: Downloading fastly_skyfire MPD information
[debug] Default format spec: bestvideo+bestaudio/best
[vimeo] 133021237: Downloading thumbnail ...
[vimeo] 133021237: Writing thumbnail to: /media/movies/youtube-dl/WILDFIRE.jpg
[download] /media/movies/youtube-dl/WILDFIRE.mp4 has already been downloaded and merged
[ffmpeg] Adding metadata to '/media/movies/youtube-dl/WILDFIRE.mp4'
[debug] ffmpeg command line: ffmpeg -y -loglevel repeat+info -i file:/media/movies/youtube-dl/WILDFIRE.mp4 -c copy -metadata title=WILDFIRE -metadata date=20150709 -metadata 'description=Court-mtrage d'"'"'animation de fin d'"'"'tudes (promotion 2015)
Synopsis :
Ena, femme pompire passionne, est trs investie dans son mtier. Sa fascination pour le feu l'"'"'panouie autant qu'"'"'elle impacte sa vie familiale.
Ena, a passionate firefighter and wife, is very involved in her profession. Her fascination with fire reveals itself as it impacts her family life.
Ralisateurs/Directors :
Hugues OPTER : huguesopter.tumblr.com
Pierre PINON : arkenn.blogspot.fr
Nicole STAFFORD : nicole-stafford.tumblr.com/
Valentin STOLL : valentinstoll.tumblr.com/
Arnaud TRIBOUT :  triboutarn.tumblr.com/
Shang ZHANG : justicerabbit.blogspot.fr/
Contact Production :
GOBELINS, l'"'"'cole de l'"'"'image : Mora Marguin, mmarguin@gobelins.fr. 
Contact Festival :
GOBELINS, l'"'"'cole de l'"'"'image : Luce Grosjean, film@gobelins.fr. 
Distribution :
La distribution des films produits par GOBELINS, l'"'"'cole de l'"'"'image est assure par L'"'"'Agence du court mtrage.
Contact : f.keller@agencecm.com.
Retrouvez GOBELINS sur :
Site internet : gobelins.fr
Facebook : facebook.com/gobelins.ecole
Twitter : twitter.com/gobelins_paris' -metadata 'comment=Court-mtrage d'"'"'animation de fin d'"'"'tudes (promotion 2015)
Synopsis :
Ena, femme pompire passionne, est trs investie dans son mtier. Sa fascination pour le feu l'"'"'panouie autant qu'"'"'elle impacte sa vie familiale.
Ena, a passionate firefighter and wife, is very involved in her profession. Her fascination with fire reveals itself as it impacts her family life.
Ralisateurs/Directors :
Hugues OPTER : huguesopter.tumblr.com
Pierre PINON : arkenn.blogspot.fr
Nicole STAFFORD : nicole-stafford.tumblr.com/
Valentin STOLL : valentinstoll.tumblr.com/
Arnaud TRIBOUT :  triboutarn.tumblr.com/
Shang ZHANG : justicerabbit.blogspot.fr/
Contact Production :
GOBELINS, l'"'"'cole de l'"'"'image : Mora Marguin, mmarguin@gobelins.fr. 
Contact Festival :
GOBELINS, l'"'"'cole de l'"'"'image : Luce Grosjean, film@gobelins.fr. 
Distribution :
La distribution des films produits par GOBELINS, l'"'"'cole de l'"'"'image est assure par L'"'"'Agence du court mtrage.
Contact : f.keller@agencecm.com.
Retrouvez GOBELINS sur :
Site internet : gobelins.fr
Facebook : facebook.com/gobelins.ecole
Twitter : twitter.com/gobelins_paris' -metadata purl=https://vimeo.com/133021237 -metadata 'artist=GOBELINS pro' file:/media/movies/youtube-dl/WILDFIRE.temp.mp4
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/local/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/local/bin/youtube-dl/__main__.py", line 19, in <module>
  File "/usr/local/bin/youtube-dl/youtube_dl/__init__.py", line 474, in main
  File "/usr/local/bin/youtube-dl/youtube_dl/__init__.py", line 464, in _real_main
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 2008, in download
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 807, in extract_info
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 861, in process_ie_result
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1642, in process_video_result
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 1989, in process_info
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 2054, in post_process
  File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 498, in run
  File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 230, in run_ffmpeg_multiple_files
  File "/usr/local/lib/python3.6/subprocess.py", line 729, in __init__
    restore_signals, start_new_session)
  File "/usr/local/lib/python3.6/subprocess.py", line 1295, in _execute_child
    restore_signals, start_new_session, preexec_fn)
UnicodeEncodeError: 'ascii' codec can't encode character '\xe9' in position 19: ordinal not in range(128)

Description

The warning:

WARNING: Assuming --restrict-filenames since file system encoding cannot encode all characters. Set the LC_ALL environment variable to fix this.

appears, even when no special characters should be involved, such as with the youtube-dl update listed above.

In cases with an actual download, even if --restrict-filenames is directly applied to the command, the following error occurs each time:

UnicodeEncodeError: 'ascii' codec can't encode character '\xe9' in position 19: ordinal not in range(128)

[dstftw]

Setup proper UTF-8 locale.

[itskando]

Setup proper UTF-8 locale.

This fixed it.
How-to found here.

[Achilles718611]

I got the same error.
I change the default local to en_US.UTF-8, but it still doesn't work.

LANG=en_US.UTF-8
LANGUAGE=
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=

Please help me.

[Achilles718611]

It's appeared videos which has spanish title.
This is the video which I tried to download.
https://www.youtube.com/watch?v=XlFOpw8tG7Y

UnicodeEncodeError: 'ascii' codec can't encode character '\xfa' in position 10: ordinal not in range(128)