Hello folks, Im using the trunk of the Calendar server without PostgreSQL but XML files. On storing address book entries from an iPad with iOS 4.2 the server throws an exception: 2010-11-03 16:09:05+0100 [-] [caldav-1] [HTTPChannel,21,10.21.0.58] [twext.web2.server#info] Exception rendering: 2010-11-03 16:09:05+0100 [-] [caldav-1] [HTTPChannel,21,10.21.0.58] [twext.web2.server#error] [Failure instance: Traceback: <type 'exceptions.AttributeError'>: 'XMLDirectoryService' object has no att ribute 'updateLock' 2010-11-03 16:09:05+0100 [-] [caldav-1] /Library/Python/2.6/site-packages/twisted/internet/defer.py:363:unpause 2010-11-03 16:09:05+0100 [-] [caldav-1] /Library/Python/2.6/site-packages/twisted/internet/defer.py:441:_runCallbacks 2010-11-03 16:09:05+0100 [-] [caldav-1] /Library/Python/2.6/site-packages/twext/web2/server.py:345:<lambda> 2010-11-03 16:09:05+0100 [-] [caldav-1] /Library/Python/2.6/site-packages/twisted/internet/defer.py:1014:unwindGenerator 2010-11-03 16:09:05+0100 [-] [caldav-1] --- <exception caught here> --- 2010-11-03 16:09:05+0100 [-] [caldav-1] /Library/Python/2.6/site-packages/twisted/internet/defer.py:893:_inlineCallbacks 2010-11-03 16:09:05+0100 [-] [caldav-1] /Library/Python/2.6/site-packages/twistedcaldav/directorybackedaddressbook.py:163:renderHTTP 2010-11-03 16:09:05+0100 [-] [caldav-1] ] Did anybody observe the same problem or am I the only one ? Or better: has anybody a fix ? TNX Goetz