ubuntu:~$ [ERROR   ] 17:09:55 main:245 /usr/lib/python2.7/dist-packages/libtorrent.so: undefined symbol: _ZN5boost4asio2ip10address_v4C1ERKNS_5arrayIhLj4EEE
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/deluge/main.py", line 238, in start_daemon
    Daemon(options, args)
  File "/usr/lib/python2.7/dist-packages/deluge/core/daemon.py", line 141, in __init__
    from deluge.core.core import Core
  File "/usr/lib/python2.7/dist-packages/deluge/core/core.py", line 36, in <module>
    from deluge._libtorrent import lt
  File "/usr/lib/python2.7/dist-packages/deluge/_libtorrent.py", line 59, in <module>
    import libtorrent as lt
ImportError: /usr/lib/python2.7/dist-packages/libtorrent.so: undefined symbol: _ZN5boost4asio2ip10address_v4C1ERKNS_5arrayIhLj4EEE