HTTP Error 403: Unauthorized even paid for udemy course #15585

[mag2000]

I have upgraded the youtube-dl to new version. I have paid for the following course on udemy. Even that i could not download by using youtube-dl. I have downloaded the various udemy paid course by using this utitlity, but all of sudden this happended

Please help me in this issue

D:\course udemy downloaded\robotic_one>youtube-dl -v -u ************ -p ******* --format 720p https://www.udemy.com/analog-electronics-robotics-learn-by-building/learn/v4/content
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', '-u', 'PRIVATE', '-p', 'PRIVATE', '--format', '720p', 'https://www.udemy.com/analog-electronics-robotics-learn-by-building/learn/v4/content']
[debug] Encodings: locale cp1252, fs utf-8, out utf-8, pref cp1252
[debug] youtube-dl version 2018.02.11
[debug] Python version 3.6.4 (CPython) - Windows-10-10.0.16299-SP0
[debug] exe versions: none
[debug] Proxy map: {}
[udemy:course] Downloading login popup
ERROR: Unable to download webpage: HTTP Error 403: Unauthorized (caused by <HTTPError 403: 'Unauthorized'>); 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 "c:\users\mohammad altaf\appdata\local\programs\python\python36-32\lib\site-packages\youtube_dl\extractor\common.py", line 519, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "c:\users\mohammad altaf\appdata\local\programs\python\python36-32\lib\site-packages\youtube_dl\YoutubeDL.py", line 2199, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "c:\users\mohammad altaf\appdata\local\programs\python\python36-32\lib\urllib\request.py", line 532, in open
response = meth(req, response)
File "c:\users\mohammad altaf\appdata\local\programs\python\python36-32\lib\urllib\request.py", line 642, in http_response
'http', request, response, code, msg, hdrs)
File "c:\users\mohammad altaf\appdata\local\programs\python\python36-32\lib\urllib\request.py", line 570, in error
return self._call_chain(*args)
File "c:\users\mohammad altaf\appdata\local\programs\python\python36-32\lib\urllib\request.py", line 504, in _call_chain
result = func(*args)
File "c:\users\mohammad altaf\appdata\local\programs\python\python36-32\lib\urllib\request.py", line 650, in http_error_default
raise HTTPError(req.full_url, code, msg, hdrs, fp)