extract raise ExtractorError

[Sukhicool]

While trying to download from Udemy I am getting the ExtractorError. It did not come for 1 course, but now coming for rest of them. I am having updated youtube-dl.

In verbose mode, I can see below:

C:\Python27\Scripts>youtube-dl -u username -p passxxxxx https://www.udemy.com/master-the-mean-stack/learn/v4/overview --verbose
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-u', u'PRIVATE', u'-p', u'PRIVATE', u'https://www.udemy.com/master-the-mean-stack/learn/v4/overview', u'--verbose
']
[debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252
[debug] youtube-dl version 2018.05.09
[debug] Python version 2.7.15rc1 (CPython) - Windows-7-6.1.7601-SP1
[debug] exe versions: none
[debug] Proxy map: {'https': 'https://proxy:8080'}
[udemy:course] Downloading login popup
[udemy:course] Logging in
[udemy:course] master-the-mean-stack: Downloading webpage
[udemy:course] 653846: Downloading course curriculum
[download] Downloading playlist: Master the MEAN Stack - Learn By Example
[udemy:course] playlist Master the MEAN Stack - Learn By Example: Collected 42 video ids (downloading 42 of them)
[download] Downloading video 1 of 42
[udemy] Downloading login popup
[udemy] 4042786: Downloading webpage
[udemy] 4042786: Downloading lecture JSON
[udemy] 4916230: Downloading m3u8 information
ERROR: An extractor error has occurred. (caused by KeyError('_Request__r_host',)); 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.
Traceback (most recent call last):
File "c:\python27\lib\site-packages\youtube_dl\extractor\common.py", line 503, in extract
ie_result = self._real_extract(url)
File "c:\python27\lib\site-packages\youtube_dl\extractor\udemy.py", line 310, in _real_extract
extract_formats(urls.get('Video'))
File "c:\python27\lib\site-packages\youtube_dl\extractor\udemy.py", line 274, in extract_formats
m3u8_id='hls', fatal=False))
File "c:\python27\lib\site-packages\youtube_dl\extractor\common.py", line 1459, in _extract_m3u8_formats
fatal=fatal)
File "c:\python27\lib\site-packages\youtube_dl\extractor\udemy.py", line 126, in _download_webpage_handle
*args, **compat_kwargs(kwargs))
File "c:\python27\lib\site-packages\youtube_dl\extractor\common.py", line 602, in _download_webpage_handle
urlh = self._request_webpage(url_or_request, video_id, note, errnote, fatal, data=data, headers=headers, query=query)
File "c:\python27\lib\site-packages\youtube_dl\extractor\common.py", line 582, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "c:\python27\lib\site-packages\youtube_dl\YoutubeDL.py", line 2211, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "c:\python27\lib\urllib2.py", line 429, in open
response = self._open(req, data)
File "c:\python27\lib\urllib2.py", line 447, in _open
'_open', req)
File "c:\python27\lib\urllib2.py", line 407, in _call_chain
result = func(*args)
File "c:\python27\lib\site-packages\youtube_dl\utils.py", line 1101, in https_open
req, **kwargs)
File "c:\python27\lib\urllib2.py", line 1195, in do_open
h.request(req.get_method(), req.get_selector(), req.data, headers)
File "c:\python27\lib\urllib2.py", line 294, in get_selector
return self.__r_host
File "c:\python27\lib\urllib2.py", line 253, in getattr
return self.dict[attr]
KeyError: '_Request__r_host'
Traceback (most recent call last):
File "c:\python27\lib\site-packages\youtube_dl\YoutubeDL.py", line 792, in extract_info
ie_result = ie.extract(url)
File "c:\python27\lib\site-packages\youtube_dl\extractor\common.py", line 516, in extract
raise ExtractorError('An extractor error has occurred.', cause=e)
ExtractorError: An extractor error has occurred. (caused by KeyError('_Request__r_host',)); 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.