Traceback (most recent call last):


 "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpee_sdt7t\build\youtube_dl\extractor\eagleplatform.py", line 82, in _download_json


 "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpee_sdt7t\build\youtube_dl\extractor\common.py", line 549, in _download_json


 "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpee_sdt7t\build\youtube_dl\extractor\common.py", line 517, in _download_webpage


 "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpee_sdt7t\build\youtube_dl\extractor\common.py", line 424, in _download_webpage_handle


 "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpee_sdt7t\build\youtube_dl\extractor\common.py", line 413, in _request_webpage
youtube_dl.utils.ExtractorError: Unable to download JSON metadata: HTTP Error 500: Internal Server Error (caused by HTTP Error()); 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.

Traceback (most recent call last):

 "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/core/management/**init**.py", line 385, in execute_from_command_line
utility.execute()

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/core/management/**init**.py", line 377, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/core/management/base.py", line 288, in run_from_argv
self.execute(_args, *_options.**dict**)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/core/management/base.py", line 338, in execute
output = self.handle(_args, *_options)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/core/management/base.py", line 533, in handle
return self.handle_noargs(*_options)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/core/management/commands/syncdb.py", line 27, in handle_noargs
call_command("migrate", *_options)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/core/management/**init**.py", line 115, in call_command
return klass.execute(_args, *_defaults)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/core/management/base.py", line 338, in execute
output = self.handle(_args, *_options)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/core/management/commands/migrate.py", line 155, in handle
changes = autodetector.changes(graph=executor.loader.graph)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/db/migrations/autodetector.py", line 42, in changes
changes = self._detect_changes(convert_apps, graph)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/db/migrations/autodetector.py", line 110, in _detect_changes
self.new_apps = self.to_state.render()

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/db/migrations/state.py", line 67, in render
model.render(self.apps)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/db/migrations/state.py", line 312, in render
body,

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/db/models/base.py", line 284, in __new__
new_class._prepare()

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/db/models/base.py", line 344, in _prepare
signals.class_prepared.send(sender=cls)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/dispatch/dispatcher.py", line 198, in send
response = receiver(signal=self, sender=sender, **named)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/db/models/fields/related.py", line 93, in do_pending_lookups
operation(field, sender, cls)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/django/db/models/fields/related.py", line 271, in resolve_related_class
field.do_related_class(model, cls)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/simple_history/models.py", line 296, in do_related_class
field = self.get_field(other, cls)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/simple_history/models.py", line 261, in get_field
field = self.get_one_to_one_field(to_field, other)

 "/Users/latog/.virtualenvs/si/lib/python2.7/site-packages/simple_history/models.py", line 246, in get_one_to_one_field
temp_field = self.__class__(to_field.rel.to._meta.object_name)AttributeError: 'unicode' object has no attribute '_meta'