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 sudo add-apt-repository ppa:openbravoisv/ppa

Traceback (most recent call last):

  File "/usr/bin/add-apt-repository", line 88, in <module>

    ppa_info = get_ppa_info_from_lp(user, ppa_name)

  File "/usr/lib/python2.7/dist-packages/softwareproperties/ppa.py", line 86, in get_ppa_info_from_lp

    return json.loads(lp_page)

  File "/usr/lib/python2.7/json/__init__.py", line 326, in loads

    return _default_decoder.decode(s)

  File "/usr/lib/python2.7/json/decoder.py", line 366, in decode

    obj, end = self.raw_decode(s, idx=_w(s, 0).end())

  File "/usr/lib/python2.7/json/decoder.py", line 384, in raw_decode

    raise ValueError("No JSON object could be decoded")

ValueError: No JSON object could be decoded