Deluge error

[Frank Seltzer]

I upgraded libtorrent-rasterbar and py27-libtorrent-rasterbar and deluge 
no longer starts.  The error output is:

[ERROR   ] 08:40:04 main:245 
/usr/local/lib/python2.7/site-packages/libtorrent.so: Undefined symbol 
"_ZNK10libtorrent14announce_entry12can_announceEN5boost6chrono10time_pointINS2_12steady_clockENS2_8durationIlNS1_5ratioILl1ELl1000000000EEEEEEEb"
Traceback (most recent call last):
   File "/usr/local/lib/python2.7/site-packages/deluge/main.py", line 238, 
in start_daemon
     Daemon(options, args)
   File "/usr/local/lib/python2.7/site-packages/deluge/core/daemon.py", 
line 141, in __init__
     from deluge.core.core import Core
   File "/usr/local/lib/python2.7/site-packages/deluge/core/core.py", line 
36, in <module>
     from deluge._libtorrent import lt
   File "/usr/local/lib/python2.7/site-packages/deluge/_libtorrent.py", 
line 59, in <module>
     import libtorrent as lt
ImportError: /usr/local/lib/python2.7/site-packages/libtorrent.so: 
Undefined symbol 
"_ZNK10libtorrent14announce_entry12can_announceEN5boost6chrono10time_pointINS2_12steady_clockENS2_8durationIlNS1_5ratioILl1ELl1000000000EEEEEEEb"

Have I fat-fingered something or is this a known problem?