'NoneType' object has no attribute '_info'

After the start of the service，jukebox runserver 0.0.0.0:9999 Prompt for access `AttributeError at /

Request Method: GET Request URL: http://0.0.0.0:9999/ Django Version: 1.4.5 Exception Type: AttributeError Exception Value:

'NoneType' object has no attribute '_info'

Exception Location: /home/lin/.virtualenvs/jukebox/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py in _fetch, line 147 Python Executable: /home/lin/.virtualenvs/jukebox/bin/python Python Version: 2.7.12 Python Path:

['/home/lin/.virtualenvs/jukebox/bin', '/home/lin/.virtualenvs/jukebox/lib/python2.7', '/home/lin/.virtualenvs/jukebox/lib/python2.7/plat-x86_64-linux-gnu', '/home/lin/.virtualenvs/jukebox/lib/python2.7/lib-tk', '/home/lin/.virtualenvs/jukebox/lib/python2.7/lib-old', '/home/lin/.virtualenvs/jukebox/lib/python2.7/lib-dynload', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/home/lin/.virtualenvs/jukebox/local/lib/python2.7/site-packages', '/home/lin/.virtualenvs/jukebox/lib/python2.7/site-packages', '/home/lin/.virtualenvs/jukebox/local/lib/python2.7/site-packages/jukebox', '/home/lin/.jukebox', '/home/lin/.jukebox']

Server time: Sat, 3 Dec 2016 07:49:03 +0100

/home/lin/.virtualenvs/jukebox/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py in _fetch

        # We want to ensure that, for example,  "en-gb" and "en-us" don't share

        # the same translation object (thus, merging en-us with a local update

        # doesn't affect en-gb), even though they will both use the core "en"

        # translation. So we have to subvert Python's internal gettext caching.

        base_lang = lambda x: x.split('-', 1)[0]

        if base_lang(lang) in [base_lang(trans) for trans in _translations]:

            res._info = res._info.copy()

 ...

            res._catalog = res._catalog.copy()

        def _merge(path):

            t = _translation(path)

            if t is not None:

                if res is None:

lociii / jukebox

'NoneType' object has no attribute '_info' #49