Unable to download webpage from youtube user

[fausterjames]

Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2016.10.21.1. If it's not read this FAQ entry and update. Issues with outdated version will be rejected.

• I've verified and I assure that I'm running youtube-dl 2016.10.21.1

Before submitting an issue make sure you have:

• At least skimmed through README and most notably FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

---

The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your issue

---

If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

Add -v flag to your command line you run youtube-dl with, copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

$ youtube-dl -v ytuser:UC8gjB1PSXv_oAUSAQ16S0fA
[debug] User config: []
[debug] Command-line args: [u'-v', u'http://www.youtube.com/watch?v=BaW_jenozKcj']
[debug] Encodings: locale cp1251, fs mbcs, out cp866, pref cp1251
[debug] youtube-dl version 2016.10.21.1
[debug] Python version 2.7.11 - Windows-2003Server-5.2.3790-SP2
[debug] exe versions: ffmpeg N-75573-g1d0487f, ffprobe N-75573-g1d0487f, rtmpdump 2.4
[debug] Proxy map: {}[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['-v', 'ytuser:UC8gjB1PSXv_oAUSAQ16S0fA']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.10.21
[debug] Python version 3.5.2 - Linux-4.7.6-1-ARCH-x86_64-with-arch
[debug] exe versions: ffmpeg 3.1.4, ffprobe 3.1.4, rtmpdump 2.4
[debug] Proxy map: {}
[youtube:user] UC8gjB1PSXv_oAUSAQ16S0fA: Downloading channel page
WARNING: Unable to download webpage: HTTP Error 404: Not Found
[youtube:user] UC8gjB1PSXv_oAUSAQ16S0fA: Downloading page #1
ERROR: Unable to download webpage: HTTP Error 404: Not Found (caused by <HTTPError 404: 'Not Found'>); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
  File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/common.py", line 403, in _request_webpage
    return self._downloader.urlopen(url_or_request)
  File "/usr/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 2001, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/lib/python3.5/urllib/request.py", line 472, in open
    response = meth(req, response)
  File "/usr/lib/python3.5/urllib/request.py", line 582, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib/python3.5/urllib/request.py", line 510, in error
    return self._call_chain(*args)
  File "/usr/lib/python3.5/urllib/request.py", line 444, in _call_chain
    result = func(*args)
  File "/usr/lib/python3.5/urllib/request.py", line 590, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
<end of log>

### Description of your *issue*, suggested solution and other information

I'm trying to download the videos from a user channel `UC8gjB1PSXv_oAUSAQ16S0fA` but I'm met with `Unable to download webpage: HTTP Error 404: Not Found (caused by <HTTPError 404: 'Not Found'>); please report`

[Hrxn]

[debug] User config: []
[debug] Command-line args: [u'-v', u'http://www.youtube.com/watch?v=BaW_jenozKcj']
[debug] Encodings: locale cp1251, fs mbcs, out cp866, pref cp1251
[debug] youtube-dl version 2016.10.21.1
[debug] Python version 2.7.11 - Windows-2003Server-5.2.3790-SP2
[debug] exe versions: ffmpeg N-75573-g1d0487f, ffprobe N-75573-g1d0487f, rtmpdump 2.4
[debug] Proxy map: {}[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['-v', 'ytuser:UC8gjB1PSXv_oAUSAQ16S0fA']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.10.21
[debug] Python version 3.5.2 - Linux-4.7.6-1-ARCH-x86_64-with-arch
[debug] exe versions: ffmpeg 3.1.4, ffprobe 3.1.4, rtmpdump 2.4
[debug] Proxy map: {}

Why are the messages appearing twice?

[yan12125]

It's not a /user/ URL:

youtube-dl https://www.youtube.com/channel/UC8gjB1PSXv_oAUSAQ16S0fA