I just installed with svn, and I'm having a similar problem. It worked for a while, but it never exited properly (I'd always have to kill it with xkill). And now it won't even start. I tried to blow away the config directory, but I'm getting the same message:
no existing Deluge session
deluge_core; using libtorrent 0.13.0.0. Compiled with NDEBUG.
Applying preferences
Applying preferences
Starting DHT...
No DHT file to resume
terminate called after throwing an instance of 'asio::system_error'
what(): Address already in use
Aborted (core dumped)
no existing Deluge session
deluge_core; using libtorrent 0.13.0.0. Compiled with NDEBUG.
Applying preferences
Applying preferences
Starting DHT...
No DHT file to resume
Starting new Deluge session...
deluge_core; using libtorrent 0.13.0.0. Compiled with NDEBUG.
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)