[niconico] improve error reporting (#13696)

diff --git a/youtube_dl/extractor/niconico.py b/youtube_dl/extractor/niconico.py
index 695e32e59b84318f82eb90dcaf967315c4790aa1..79b9952c36c212b4321b01408672675e191d99a2 100644 (file)
--- a/youtube_dl/extractor/niconico.py
+++ b/youtube_dl/extractor/niconico.py
@@ -147,6 +147,9 @@ class NiconicoIE(InfoExtractor):
             elif 'closed' in flv_info:
                 raise ExtractorError('Niconico videos now require logging in',
                                      expected=True)
+            elif 'error' in flv_info:
+                raise ExtractorError('%s reports error: %s' % (
+                    self.IE_NAME, flv_info['error'][0]), expected=True)
             else:
                 raise ExtractorError('Unable to find video URL')