$ deluge
no existing Deluge session
deluge_core; using libtorrent 0.11.0.0. Compiled with NDEBUG value: 1
Applying preferences
Raising error: 
deluge_core; using libtorrent 0.11.0.0. Compiled with NDEBUG value: 1
terminate called after throwing an instance of 'boost::filesystem::filesystem_error'
  what():  boost::filesystem::default_name_check: default name check already set
Aborted (core dumped)
tms@tms-laptop:~$