-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I have CalendarServer 3.2 installed on Ubuntu Precise. I got the package and a couple of dependencies from the Quantal repo and installed them manually. It runs well, but I notice that I get this error in /var/log/caldavd/error.log every five minutes: 2012-08-15 20:02:42+1200 [-] [groupcacher] 2012-08-15 20:02:42+1200 [-] Unhandled error in Deferred: 2012-08-15 20:02:42+1200 [-] [groupcacher] 2012-08-15 20:02:42+1200 [-] Unhandled Error 2012-08-15 20:02:42+1200 [-] [groupcacher] Traceback (most recent call last): 2012-08-15 20:02:42+1200 [-] [groupcacher] File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1095, in gotResult 2012-08-15 20:02:42+1200 [-] [groupcacher] _inlineCallbacks(r, g, deferred) 2012-08-15 20:02:42+1200 [-] [groupcacher] File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1039, in _inlineCallbacks 2012-08-15 20:02:42+1200 [-] [groupcacher] result = g.send(result) 2012-08-15 20:02:42+1200 [-] [groupcacher] File "/usr/lib/python2.7/dist-packages/twistedcaldav/directory/directory.py", line 674, in updateCache 2012-08-15 20:02:42+1200 [-] [groupcacher] groups, aliases = (yield self.getGroups(guids=delegatedGUIDs)) 2012-08-15 20:02:42+1200 [-] [groupcacher] File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1181, in unwindGenerator 2012-08-15 20:02:42+1200 [-] [groupcacher] return _inlineCallbacks(None, gen, Deferred()) 2012-08-15 20:02:42+1200 [-] [groupcacher] --- <exception caught here> --- 2012-08-15 20:02:42+1200 [-] [groupcacher] File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1039, in _inlineCallbacks 2012-08-15 20:02:42+1200 [-] [groupcacher] result = g.send(result) 2012-08-15 20:02:42+1200 [-] [groupcacher] File "/usr/lib/python2.7/dist-packages/twistedcaldav/directory/directory.py", line 540, in getGroups 2012-08-15 20:02:42+1200 [-] [groupcacher] groups[alias] = record.memberGUIDs() 2012-08-15 20:02:42+1200 [-] [groupcacher] File "/usr/lib/python2.7/dist-packages/twistedcaldav/directory/xmlfile.py", line 604, in memberGUIDs 2012-08-15 20:02:42+1200 [-] [groupcacher] results.add(record.guid) 2012-08-15 20:02:42+1200 [-] [groupcacher] exceptions.AttributeError: 'NoneType' object has no attribute 'guid' As far as I know, it's not causing any problems as a result, but it is filling up the log file. What might be causing it? Thanks Jane Atkinson -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJQK1yIAAoJEERzSJEx033jeKQH/iMUmr4OuKEGZlVunHPeRc01 Li6rswkqQm+rTNFO3aGaLvftPLYhtGqr9bXfdZL7QsLeU+d2MsQl+HrS44XOhJeD qqrXZTXqNW7YImVfMC8PJg4c26o/Smp5bYwaFl04RVoeaBYM/XcJ4hiEZyqQgTKD 3D5uoz7uRQMXm+fWhZkNP8GBzT8cAO0gC8IxS1HLXArbdRiue7DT2lwS3UPEBgqu tdUIwfP8Lq/Wigz0NzvbEsNt4LyKmeG9btUhI9Vh0BmskhbM0kbCPVzWnhPjPvK3 9cCDj35GYQWvcDsupwws3T1YVL1IRAIC3XM7WRzs8m2WGuKWGW8J/11QzExEudQ= =f68M -----END PGP SIGNATURE-----