'HTTP Error 401: Unauthorized' on soundcloud

[expenses]

• I've verified and I assure that I'm running youtube-dl 2018.01.14
• At least skimmed through the README, most notably the 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)

I've started getting this error with soundcloud downloads recently:

[debug] System config: []
[debug] User config: [u'-o', u'~/Movies/%(uploader)s/%(title)s.%(ext)s', u'--default-search', u'ytsearch']
[debug] Custom config: []
[debug] Command-line args: [u'https://soundcloud.com/<removed for privacy reasons>/tracks', u'--verbose']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.01.14
[debug] Python version 2.7.10 (CPython) - Darwin-17.3.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 3.4.1, ffprobe 3.4.1
[debug] Proxy map: {}
[soundcloud:user] <removed for privacy reasons>: Downloading user info
ERROR: Unable to download JSON metadata: HTTP Error 401: Unauthorized (caused by HTTPError()); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 517, in _request_webpage
    return self._downloader.urlopen(url_or_request)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 2198, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 437, in open
    response = meth(req, response)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 550, in http_response
    'http', request, response, code, msg, hdrs)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 475, in error
    return self._call_chain(*args)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 409, in _call_chain
    result = func(*args)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib2.py", line 558, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)

It happens with all accounts and urls as far as I can tell. I've tried it from behind a VPN and TOR and it still doesn't work, so I don't think it's a local problem.

[varunest]

I too have started receiving this error. Any updates on this?

[varunest]

Okay. Got it. Client ID changed to "DQskPX1pntALRzMp4HSxya3Mc0AO66Ro"

[varunest]

Please merge my pull request. #15308