Deluge won't start - crashes

[meridius]

Hi!

I get kick-out from bugs.launchpad.net because I use the latest deluge package 1.2.0_rc3 which is not in official Ubuntu archives. So here I am, complaining. ;D

The problem is:
When I try to start deluge, it write this to CLI:

Traceback (most recent call last):
 File "/usr/bin/deluge", line 8, in <module>
   load_entry_point('deluge==1.2.0-rc3', 'console_scripts', 'deluge')()
 File "/usr/lib/pymodules/python2.6/deluge/main.py", line 121, in start_ui
   UI(options, args, options.args)
 File "/usr/lib/pymodules/python2.6/deluge/ui/ui.py", line 128, in __init__
   ui = GtkUI(args)
 File "/usr/lib/pymodules/python2.6/deluge/ui/gtkui/gtkui.py", line 193, in __init__
   self.ipcinterface = IPCInterface(args)
 File "/usr/lib/pymodules/python2.6/deluge/ui/gtkui/ipcinterface.py", line 110, in __init__
   reactor.listenUNIX(socket, self.factory, wantPID=True)
 File "/usr/lib/python2.6/dist-packages/twisted/internet/posixbase.py", line 315, in listenUNIX
   p.startListening()
 File "/usr/lib/python2.6/dist-packages/twisted/internet/unix.py", line 71, in startListening
   if not self.lockFile.lock():
 File "/usr/lib/python2.6/dist-packages/twisted/python/lockfile.py", line 147, in lock
   kill(int(pid), 0)
OSError: [Errno 1] Operation not permitted

My system info:
Ubuntu 9.10
deluge 1.2.0~rc3-2~karmic~ppa1
from PPA:  http://ppa.launchpad.net/deluge-team/ppa/ubuntu[[BR]]

Thanks for quick repair!

[andar]

Duplicated of #1071