ERROR: An extractor error has occurred. (caused by KeyError(u'vcodec',));

[awei78]

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[Issue]
url:http://video.toggle.sg/en/series/whoopie-s-world/ep3/478601
parse error:
[toggle] 478601: Downloading video page
[toggle] 478601: Downloading video info json
[toggle] 478601: Downloading STBMain m3u8 information
[toggle] 478601: Downloading iPhoneMain m3u8 information
[toggle] 478601: Downloading iPadMain m3u8 information
[toggle] 478601: Downloading Android m3u8 information
[toggle] 478601: Downloading HLS_Mobile m3u8 information
ERROR: An extractor error has occurred. (caused by KeyError(u'vcodec',)); 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.

[Rolution]
youtube_dl\extractor\common.py
line1408:
if audio_in_video_stream.get(last_info.get('AUDIO')) is False and f['vcodec'] != 'none':
modified to
if audio_in_video_stream.get(last_info.get('AUDIO')) is False and f.get('vcodec', 'none') != 'none':

It works fine!

[vikivivi]

Any chance to fix this issue #12211using @awei78 patch ?
This issue is still present using version 2017.04.09 (3f2ce68)

$ git diff youtube_dl/extractor/common.py
diff --git a/youtube_dl/extractor/common.py b/youtube_dl/extractor/common.py
index ae8af61..8bb998f 100644
--- a/youtube_dl/extractor/common.py
+++ b/youtube_dl/extractor/common.py
@@ -1424,7 +1424,7 @@ class InfoExtractor(object):
                         'abr': abr,
                     })
                 f.update(parse_codecs(last_info.get('CODECS')))
-                if audio_in_video_stream.get(last_info.get('AUDIO')) is False and f['vcodec'] != 'none':
+                if audio_in_video_stream.get(last_info.get('AUDIO')) is False and f.get('vcodec', 'none') != 'none':
                     # TODO: update acodec for audio only formats with the same GROUP-ID
                     f['acodec'] = 'none'
                 formats.append(f)