Doesnt work with Zarafa?



  • I have Zarafa running with iCal and Contacts, but adding this to my Android phone doesn't work.
    I got certificates worked out fine, but now DAVdroid says "Fehlende Server-Unterstützung: Weder CalDAV noch CardDAV ist verfügbar" - which means it could not find any cal/cardDAV services on the server.

    I tried various variants of the path and URL, but it didn't get better.
    This is Zarafa 7.1.2-39121 using built-in CalDAV and SabreDAV via github.com/bokxing-it/sabre-zarafa

    greetings


  • developer

    Which is the base URL you have entered? To check if CalDAV/CardDAV is supported, DAVdroid sends an OPTION request and looks for the appropriate DAV fields.

    You can check CalDAV/CardDAV support for a URL by running curl -vX OPTIONS http://your-url (add -u if required)



  • Thanks for the fast reply!

    I have to add some fragments as it seems I forgot to enter the ports at first! :-) :
    CardDAV: enter URL like zarafaserver.tld:8843 , then I can select an addressbok (name is "null", path is /addressbooks/username/Contacts/). It begins to sync but eventually fails and tells "Sync is currently experiencing problems. It will be back shortly.". No contacts arrived on the android phone/emulator 4.2.2.
    CalDAV: enter URL like zarafaserver.tld:8443 , then I get 'no peer certificate' as error.
    Both URLs work in Firefox and I get what sabredav displays: addresbooks or calendar.ics, after having installed my certificate. But it seems I have misconfigured CalDAV since the connection, even though https, seems not to be encrypted, as firefox displays.

    To conclude, I am not quite sure if the certificate thing is really worked out after these observations, maybe the mistake happens still on my side....



  • the problem was more on my side: I forgot to set the correct certificate also for the ical gateway in Zarafa. Now the same certificate is set, and it works with iCal like before.
    With DAVdroid its now this:
    CalDAV: enter URL like zarafaserver.tld:8443/caldav, (based on default settings, can vary) use https and enter zarafa username and password.
    Then I am presented with an overview of the calendars that I can sync, it displays their names and URL. I select all of them or leave the tasks calendar out, and continue. Everything seems fine now.
    Getting back to the preferences I see DAVdroid is syncing, but - like in contacts - eventually fails and tells "Sync is currently experiencing problems. It will be back shortly.".
    So no calendar items arrived on the android phone/emulator 4.2.2, but the calendars are listed when tapping "Calendars to display" in the built-in calendar app.

    is there a log or debug mode or something like this?



  • Since CalDAV is more important to me, I got a step further with investigating. It seems zarafa cannot digest a specific request, here is the excerpt of the ical.log from zarafa (7.1.2-39121):

    Sun Oct 20 19:03:16 2013: Listening on secure port 8443.
    Sun Oct 20 19:03:16 2013: [ 1601] Logger process started on pid 1603
    Sun Oct 20 19:03:16 2013: [ 1601] Starting zarafa-ical version 7,1,2,39121 (39121), pid 1601
    Sun Oct 20 19:05:16 2013: [ 1601] Connection waiting on secure port 8443.
    Sun Oct 20 19:05:16 2013: [ 1601] Accepted connection from 192.168.178.53
    Sun Oct 20 19:05:16 2013: [ 1854] 192.168.178.53 - test1 [20/Oct/2013:19:05:16 +0200] "OPTIONS /caldav/ HTTP/1.1" 200 0 "-" "DAVdroid"
    Sun Oct 20 19:05:17 2013: [ 1854] Connection closed
    Sun Oct 20 19:05:17 2013: [ 1601] Connection waiting on secure port 8443.
    Sun Oct 20 19:05:17 2013: [ 1601] Accepted connection from 192.168.178.53
    Sun Oct 20 19:05:17 2013: [ 1855] 192.168.178.53 - test1 [20/Oct/2013:19:05:17 +0200] "PROPFIND /caldav/ HTTP/1.1" 207 340 "-" "DAVdroid"
    Sun Oct 20 19:05:17 2013: [ 1855] Connection closed
    Sun Oct 20 19:05:17 2013: [ 1601] Connection waiting on secure port 8443.
    Sun Oct 20 19:05:17 2013: [ 1601] Accepted connection from 192.168.178.53
    Sun Oct 20 19:05:18 2013: [ 1857] 192.168.178.53 - test1 [20/Oct/2013:19:05:18 +0200] "PROPFIND /caldav/test1/ HTTP/1.1" 207 550 "-" "DAVdroid"
    Sun Oct 20 19:05:18 2013: [ 1857] Connection closed
    Sun Oct 20 19:05:18 2013: [ 1601] Connection waiting on secure port 8443.
    Sun Oct 20 19:05:18 2013: [ 1601] Accepted connection from 192.168.178.53
    Sun Oct 20 19:05:18 2013: [ 1859] 192.168.178.53 - test1 [20/Oct/2013:19:05:18 +0200] "PROPFIND /caldav/test1/ HTTP/1.1" 207 2075 "-" "DAVdroid"
    Sun Oct 20 19:05:29 2013: [ 1601] Connection waiting on secure port 8443.
    Sun Oct 20 19:05:29 2013: [ 1601] Accepted connection from 192.168.178.53
    Sun Oct 20 19:05:29 2013: [ 1861] 192.168.178.53 - test1 [20/Oct/2013:19:05:29 +0200] "PROPFIND /caldav/test1/FLDPRFX_A11B9FE4BFAC4A2681A4BB8A4F94AB5C/ HTTP/1.1" 207 365 "-" "DAVdroid"
    Sun Oct 20 19:05:29 2013: [ 1859] Connection closed
    Sun Oct 20 19:05:29 2013: [ 1861] Connection closed
    Sun Oct 20 19:05:29 2013: [ 1601] Connection waiting on secure port 8443.
    Sun Oct 20 19:05:29 2013: [ 1601] Accepted connection from 192.168.178.53
    Sun Oct 20 19:05:30 2013: [ 1863] Number of items in folder returned: 1411
    Sun Oct 20 19:05:30 2013: [ 1863] 192.168.178.53 - test1 [20/Oct/2013:19:05:30 +0200] "PROPFIND /caldav/test1/FLDPRFX_A11B9FE4BFAC4A2681A4BB8A4F94AB5C/ HTTP/1.1" 207 434041 "-" "DAVdroid"
    Sun Oct 20 19:06:33 2013: [ 1863] Connection closed
    Sun Oct 20 19:06:33 2013: [ 1601] Connection waiting on secure port 8443.
    Sun Oct 20 19:06:33 2013: [ 1601] Accepted connection from 192.168.178.53
    Sun Oct 20 19:06:33 2013: [ 1874] Error processing REPORT request, error code 0x8004011b
    Sun Oct 20 19:06:33 2013: [ 1874] 192.168.178.53 - test1 [20/Oct/2013:19:06:33 +0200] "REPORT /caldav/test1/FLDPRFX_A11B9FE4BFAC4A2681A4BB8A4F94AB5C/ HTTP/1.1" 400 0 "-" "DAVdroid"
    

    via http://www.zarafa.com/wiki/index.php/MAPI_error_codes this means MAPI_E_CORRUPT_DATA, whatever that means. does this help?


  • developer

    Seems like Zarafa has a problem with DAVdroid's REPORT query. Closing because I think this is a Zarafa bug (all other servers answer correctly). If you want to report a bug for Zarafa, you may want to see the logcat output for tag:davdroid (verbose level) to see the exact DAVdroid REPORT request. But they all look like this (for calendars):

    REPORT /radicale/user/test.ics/ HTTP/1.1
    <C:calendar-multiget xmlns:C="urn:ietf:params:xml:ns:caldav" xmlns="DAV:">
       <href>/radicale/user/test.ics/30e3d838-1ede-472d-af7a-6c85062eee8f.ics</href>
       <href>/radicale/user/test.ics/7ff4d721-a102-4f0c-9748-5ba8083d4459.ics</href>
       <prop>
          <C:calendar-data/>
          <getetag/>
       </prop>
    </C:calendar-multiget>
    


  • many thanks for the fast reply!
    I upgraded to Zarafa 7.1.7-42779 just to be sure.

    Then I went to terminal and entered

    ./adb shell setprop lo.tag.davdroid V
    ./adb logcat -v time davdroid:V > logdatei.log
    

    in the hope of getting everything log out of there.

    so here are the results of some incomplete testing:

    • first I went to Zarafa and deleted a sub calendar so now only the main calendar is there, and it is empty.
      This syncs fine with Davdroid. It even syncs fine with a simple appointment included.
      _edit: I posted the wrong log at first
    11-03 14:25:09.526 I/davdroid.DavSyncAdapter( 3370): Performing sync for authority com.android.calendar
    11-03 14:25:09.596 I/davdroid.WebDavResource( 3370): Using preemptive Basic Authentication
    11-03 14:25:09.626 I/davdroid.SyncManager( 3370): Remotely removing 0 deleted resource(s) (if not changed)
    11-03 14:25:09.656 I/davdroid.SyncManager( 3370): Uploading 0 new resource(s) (if not existing)
    11-03 14:25:09.746 I/davdroid.SyncManager( 3370): Uploading 0 modified resource(s) (if not changed)
    11-03 14:25:09.746 I/davdroid.SyncManager( 3370): Synchronization forced
    11-03 14:25:09.746 I/davdroid.SyncManager( 3370): Fetching remote resource list
    11-03 14:25:09.906 D/davdroid.HttpPropfind( 3370): Prepared PROPFIND request: <propfind xmlns="DAV:">
    11-03 14:25:09.906 D/davdroid.HttpPropfind( 3370):    <prop>
    11-03 14:25:09.906 D/davdroid.HttpPropfind( 3370):       <CS:getctag xmlns:CS="http://calendarserver.org/ns/"/>
    11-03 14:25:09.906 D/davdroid.HttpPropfind( 3370):       <getetag/>
    11-03 14:25:09.906 D/davdroid.HttpPropfind( 3370):    </prop>
    11-03 14:25:09.906 D/davdroid.HttpPropfind( 3370): </propfind>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370): Received multistatus response: <?xml version="1.0" encoding="UTF-8"?>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370): <C:multistatus xmlns:D="http://calendarserver.org/ns/" xmlns:C="DAV:">
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):  <C:response>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):   <C:href>/caldav/test1/FLDPRFX_C8EA8FAB901744CD9AAC287E5A0E184D/</C:href>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):   <C:propstat>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):    <C:prop>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):     <D:getctag>1383485101</D:getctag>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):     <C:getetag>1356823334</C:getetag>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):    </C:prop>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):   </C:propstat>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):  </C:response>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):  <C:response>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):   <C:href>/caldav/test1/FLDPRFX_C8EA8FAB901744CD9AAC287E5A0E184D/040000008200E00074C5B7101A82E00800000000007F941E98D8CE01000000000000000001000000302F519D7C5E4FC2AB1E24CF299A024E.ics</C:href>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):   <C:propstat>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):    <C:prop>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):     <D:getctag>0</D:getctag>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):     <C:getetag>1383485101</C:getetag>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):    </C:prop>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):   </C:propstat>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370):  </C:response>
    11-03 14:25:10.456 D/davdroid.WebDavCollection( 3370): </C:multistatus>
    11-03 14:25:12.926 I/davdroid.SyncManager( 3370): Adding 1 remote resource(s)
    11-03 14:25:14.196 I/davdroid.Event( 3370): Parsed iCal: BEGIN:VCALENDAR
    11-03 14:25:14.196 I/davdroid.Event( 3370): VERSION:2.0
    11-03 14:25:14.196 I/davdroid.Event( 3370): PRODID:-//Zarafa//7.1.7-42779//EN
    11-03 14:25:14.196 I/davdroid.Event( 3370): CALSCALE:GREGORIAN
    11-03 14:25:14.196 I/davdroid.Event( 3370): METHOD:PUBLISH
    11-03 14:25:14.196 I/davdroid.Event( 3370): BEGIN:VEVENT
    11-03 14:25:14.196 I/davdroid.Event( 3370): TRANSP:OPAQUE
    11-03 14:25:14.196 I/davdroid.Event( 3370): X-MICROSOFT-CDO-INTENDEDSTATUS:BUSY
    11-03 14:25:14.196 I/davdroid.Event( 3370): CREATED:20131103T132501Z
    11-03 14:25:14.196 I/davdroid.Event( 3370): LAST-MODIFIED:20131103T132510Z
    11-03 14:25:14.196 I/davdroid.Event( 3370): DTSTAMP:20131103T132510Z
    11-03 14:25:14.196 I/davdroid.Event( 3370): DTSTART:20131105T023000Z
    11-03 14:25:14.196 I/davdroid.Event( 3370): DTEND:20131105T030000Z
    11-03 14:25:14.196 I/davdroid.Event( 3370): SUMMARY:neuer event
    11-03 14:25:14.196 I/davdroid.Event( 3370): PRIORITY:5
    11-03 14:25:14.196 I/davdroid.Event( 3370): CLASS:PUBLIC
    11-03 14:25:14.196 I/davdroid.Event( 3370): UID:040000008200E00074C5B7101A82E00800000000007F941E98D8CE01000000000000000001000000302F519D7C5E4FC2AB1E24CF299A024E
    11-03 14:25:14.196 I/davdroid.Event( 3370): X-MICROSOFT-CDO-OWNER-CRITICAL-CHANGE:20131103T132513Z
    11-03 14:25:14.196 I/davdroid.Event( 3370): X-MICROSOFT-CDO-ATTENDEE-CRITICAL-CHANGE:20131103T132513Z
    11-03 14:25:14.196 I/davdroid.Event( 3370): X-MICROSOFT-CDO-APPT-SEQUENCE:0
    11-03 14:25:14.196 I/davdroid.Event( 3370): X-MICROSOFT-CDO-OWNERAPPTID:-1
    11-03 14:25:14.196 I/davdroid.Event( 3370): X-MICROSOFT-CDO-ALLDAYEVENT:FALSE
    11-03 14:25:14.196 I/davdroid.Event( 3370): END:VEVENT
    11-03 14:25:14.196 I/davdroid.Event( 3370): END:VCALENDAR
    11-03 14:25:14.196 I/davdroid.SyncManager( 3370): Adding 040000008200E00074C5B7101A82E00800000000007F941E98D8CE01000000000000000001000000302F519D7C5E4FC2AB1E24CF299A024E.ics
    11-03 14:25:14.206 I/davdroid.LocalCollection( 3370): Committing 1 operations
    11-03 14:25:14.316 I/davdroid.SyncManager( 3370): Updating 0 remote resource(s)
    11-03 14:25:14.316 I/davdroid.SyncManager( 3370): Removing resources that are missing remotely
    11-03 14:25:14.327 I/davdroid.LocalCollection( 3370): Committing 1 operations
    11-03 14:25:14.376 I/davdroid.LocalCollection( 3370): Committing 1 operations
    
    • Then I added a new sub calendar (or folder) and entered an appointment in this calendar: this also synced fine with Davdroid.

    • So I went ahead and imported a set with about 1200 events into this calendar. When syncing this, DAVdroid encountered an error, below is the snipped of the log, I hope that helps to find out where the error comes from...

    11-03 13:56:09.796 I/davdroid.DavSyncAdapter( 2141): Performing sync for authority com.android.calendar
    11-03 13:56:09.876 I/davdroid.WebDavResource( 2141): Using preemptive Basic Authentication
    11-03 13:56:09.926 I/davdroid.WebDavResource( 2141): Using preemptive Basic Authentication
    11-03 13:56:09.976 I/davdroid.WebDavResource( 2141): Using preemptive Basic Authentication
    11-03 13:56:10.006 I/davdroid.SyncManager( 2141): Remotely removing 0 deleted resource(s) (if not changed)
    11-03 13:56:10.026 I/davdroid.SyncManager( 2141): Uploading 0 new resource(s) (if not existing)
    11-03 13:56:10.055 I/davdroid.SyncManager( 2141): Uploading 0 modified resource(s) (if not changed)
    11-03 13:56:10.055 I/davdroid.SyncManager( 2141): Synchronization forced
    11-03 13:56:10.055 I/davdroid.SyncManager( 2141): Fetching remote resource list
    11-03 13:56:10.166 D/davdroid.HttpPropfind( 2141): Prepared PROPFIND request: <propfind xmlns="DAV:">
    11-03 13:56:10.166 D/davdroid.HttpPropfind( 2141):    <prop>
    11-03 13:56:10.166 D/davdroid.HttpPropfind( 2141):       <CS:getctag xmlns:CS="http://calendarserver.org/ns/"/>
    11-03 13:56:10.166 D/davdroid.HttpPropfind( 2141):       <getetag/>
    11-03 13:56:10.166 D/davdroid.HttpPropfind( 2141):    </prop>
    11-03 13:56:10.166 D/davdroid.HttpPropfind( 2141): </propfind>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141): Received multistatus response: <?xml version="1.0" encoding="UTF-8"?>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141): <C:multistatus xmlns:D="http://calendarserver.org/ns/" xmlns:C="DAV:">
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  <C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/</C:href>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <D:getctag>1383482451</D:getctag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <C:getetag>1383482008</C:getetag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    </C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   </C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  </C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  <C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/5834E23E-83D0-418B-A01F-339F47D18D86.ics</C:href>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <D:getctag>0</D:getctag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <C:getetag>1383482451</C:getetag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    </C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   </C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  </C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  <C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/1F042E7E-799C-418D-9819-98FC44958FF7.ics</C:href>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <D:getctag>0</D:getctag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <C:getetag>1383482451</C:getetag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    </C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   </C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  </C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  <C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/64460268-2CE6-4F77-B901-A870B89A2AA5.ics</C:href>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <D:getctag>0</D:getctag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <C:getetag>1383482451</C:getetag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    </C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   </C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  </C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  <C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/2B02CB69-2FDB-4683-8B54-635219C06D7B.ics</C:href>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <D:getctag>0</D:getctag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <C:getetag>1383482451</C:getetag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    </C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   </C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  </C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  <C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/C3D5C153-5BC3-4C1D-A5F0-E378F019F40E.ics</C:href>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <D:getctag>0</D:getctag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <C:getetag>1383482450</C:getetag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    </C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   </C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  </C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  <C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/D352BC6E-1556-4935-8551-37146C683BE9.ics</C:href>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <D:getctag>0</D:getctag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <C:getetag>1383482450</C:getetag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    </C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   </C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  </C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  <C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/649C6182-D81C-4BA6-8377-76C869353371.ics</C:href>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <D:getctag>0</D:getctag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <C:getetag>1383482450</C:getetag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    </C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   </C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  </C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  <C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/355193F6-5161-4115-9FA5-08DF06AC5529.ics</C:href>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <D:getctag>0</D:getctag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <C:getetag>1383482450</C:getetag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    </C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   </C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  </C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  <C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/662B43C3-9892-44A6-AF64-A3FFFFA2B1F7.ics</C:href>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <D:getctag>0</D:getctag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <C:getetag>1383482450</C:getetag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    </C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   </C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  </C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  <C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/094C0BFC-2A67-4992-9FA7-5A899D81C595.ics</C:href>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <D:getctag>0</D:getctag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <C:getetag>1383482449</C:getetag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    </C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   </C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  </C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  <C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/9D77BD7F-4B71-4D4C-85BF-1153177316FF.ics</C:href>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <D:getctag>0</D:getctag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <C:getetag>1383482449</C:getetag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    </C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   </C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  </C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):  <C:response>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/4255B3D5-1E7C-46AE-AF5F-5C3D2F6FB7E9.ics</C:href>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):   <C:propstat>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <D:getctag>0</D:getctag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):     <C:getetag>1383482449</C:getetag>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    </C:prop>
    11-03 13:56:40.966 D/davdroid.WebDavCollection( 2141):    <C:status>HTTP/
    11-03 13:57:37.385 I/davdroid.SyncManager( 2141): Adding 1293 remote resource(s)
    11-03 13:57:48.457 D/DavHttpReport( 2141): Prepared REPORT request: <C:calendar-multiget xmlns:C="urn:ietf:params:xml:ns:caldav" xmlns="DAV:">
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/D5514EFF-826C-491B-8F27-ECBDF4DD4A2B.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/DE02CDF7-0572-438E-8A50-C6FDFDECD930.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/1FD7C170-3A0E-42BD-ADE2-0848B3B5D9B6.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/743936D7-1932-496F-9D2A-FB9B6780414F.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/A9A8A781-7DCE-41C0-9A26-FCCF39A9F143.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/3BA06389-495F-480C-8492-0FD4334D0CED.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/8671AE85-DE36-48A4-BB89-3081B049600D.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/7C4B6EF1-E92A-42D3-81EB-A4CA66856CC8.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/635F4197-CFC7-49E3-92A5-805A7B3FB7FB.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/649C6182-D81C-4BA6-8377-76C869353371.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/49173ECB-B0ED-4D2C-A7B8-B248DB151C55.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/E8B4BF78-5FA3-461B-8F7F-E3B9FE141104.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/68FCF4CC-21CA-4682-9B47-688803E33B16.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/EE5278FF-0E59-466E-9E96-1C5552618055.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/A93AB958-BD86-41FB-9C81-0930DAB63DF6.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/EEEC953D-8C09-477A-8F55-8DB5115355E6.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/8CB7E66F-C5BA-4CC6-8C4F-13EB121B4D20.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/CE8B0336-AAB9-4793-A36F-A998132673E8.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/34A259A4-813B-4DA9-976F-EF570ECA098F.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/57AC7D2E-4EE0-4005-A7C7-81E326DAFBC7.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/EA8BF5B9-27F4-4A47-AA32-7F3AFFA3B0F1.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/C11352E8-786A-4F6E-8EE0-FCEC15C683F1.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/86723FD8-5229-4B38-92F8-B1EE49BDF8B6.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/36A7E023-9720-4AC6-A7F9-2155AF5F87F5.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/A4082304-0273-4EA8-97AA-B98659CA3815.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/B5FBA6C3-3862-4CFE-A9BD-6F5CB32582EB.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/2D1D04F3-AB55-44E6-8F58-72BF51EE7349.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/E2E82251-1212-480E-BF6C-55851BFB492F.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/9410330F-408A-4E22-A508-D69F3FB75C40.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/768C8183-15A4-48DA-8C97-133342A77A80.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/BB61EF40-1760-42F8-BF2F-F25BCC2D5AFE.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/D32B3B6F-D0FE-4D9E-A41A-633E04337A75.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/EC6659A0-B62F-49CF-B59C-625D749FC625.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/D734C21C-F8F9-4118-8163-553D7A4E0DF9.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87F0F4FECB8FCAE2DF32C771E/D7ED6B5C-21EA-4470-A36C-3BA67BADCAB8.ics</href>
    11-03 13:57:48.457 D/DavHttpReport( 2141):    <href>/caldav/test1/FLDPRFX_AC3BC8F87
    11-03 13:57:48.746 E/davdroid.DavSyncAdapter( 2141): HTTP error
    11-03 13:57:48.746 E/davdroid.DavSyncAdapter( 2141): org.apache.http.HttpException: 500 Internal Server Error
    11-03 13:57:48.746 E/davdroid.DavSyncAdapter( 2141): 	at at.bitfire.davdroid.webdav.WebDavResource.checkResponse(WebDavResource.java:130)
    11-03 13:57:48.746 E/davdroid.DavSyncAdapter( 2141): 	at at.bitfire.davdroid.webdav.WebDavResource.checkResponse(WebDavResource.java:112)
    11-03 13:57:48.746 E/davdroid.DavSyncAdapter( 2141): 	at at.bitfire.davdroid.webdav.WebDavCollection.multiGet(WebDavCollection.java:115)
    11-03 13:57:48.746 E/davdroid.DavSyncAdapter( 2141): 	at at.bitfire.davdroid.resource.RemoteCollection.multiGet(RemoteCollection.java:78)
    11-03 13:57:48.746 E/davdroid.DavSyncAdapter( 2141): 	at at.bitfire.davdroid.syncadapter.SyncManager.synchronize(SyncManager.java:138)
    11-03 13:57:48.746 E/davdroid.DavSyncAdapter( 2141): 	at at.bitfire.davdroid.syncadapter.DavSyncAdapter.onPerformSync(DavSyncAdapter.java:54)
    11-03 13:57:48.746 E/davdroid.DavSyncAdapter( 2141): 	at android.content.AbstractThreadedSyncAdapter$SyncThread.run(AbstractThreadedSyncAdapter.java:254)
    11-03 13:57:48.806 D/SyncManager(  279): failed sync operation test1@192.168.178.55/caldav u0 (bitfire.at.davdroid), com.android.calendar, USER, earliestRunTime 6090749, SyncResult: stats [ numIoExceptions: 1]
    

    So after these test results, it looks like some events in the calendar are the guilty ones?

    _edit

    • then I went to Zarafa and deleted that sub calendar containing that many items, and after this, sync produces this log:
    11-03 14:19:44.956 I/davdroid.DavSyncAdapter( 3370): Performing sync for authority com.android.calendar
    11-03 14:19:45.016 I/davdroid.WebDavResource( 3370): Using preemptive Basic Authentication
    11-03 14:19:45.046 I/davdroid.WebDavResource( 3370): Using preemptive Basic Authentication
    11-03 14:19:45.076 I/davdroid.WebDavResource( 3370): Using preemptive Basic Authentication
    11-03 14:19:45.136 I/davdroid.SyncManager( 3370): Remotely removing 0 deleted resource(s) (if not changed)
    11-03 14:19:45.246 I/davdroid.SyncManager( 3370): Uploading 0 new resource(s) (if not existing)
    11-03 14:19:45.286 I/davdroid.SyncManager( 3370): Uploading 0 modified resource(s) (if not changed)
    11-03 14:19:45.296 I/davdroid.SyncManager( 3370): Fetching remote resource list
    11-03 14:19:45.455 D/davdroid.HttpPropfind( 3370): Prepared PROPFIND request: <propfind xmlns="DAV:">
    11-03 14:19:45.455 D/davdroid.HttpPropfind( 3370):    <prop>
    11-03 14:19:45.455 D/davdroid.HttpPropfind( 3370):       <CS:getctag xmlns:CS="http://calendarserver.org/ns/"/>
    11-03 14:19:45.455 D/davdroid.HttpPropfind( 3370):       <getetag/>
    11-03 14:19:45.455 D/davdroid.HttpPropfind( 3370):    </prop>
    11-03 14:19:45.455 D/davdroid.HttpPropfind( 3370): </propfind>
    11-03 14:19:45.956 D/davdroid.WebDavCollection( 3370): Received multistatus response: <?xml version="1.0" encoding="UTF-8"?>
    11-03 14:19:45.956 D/davdroid.WebDavCollection( 3370): <C:multistatus xmlns:D="http://calendarserver.org/ns/" xmlns:C="DAV:">
    11-03 14:19:45.956 D/davdroid.WebDavCollection( 3370):  <C:response>
    11-03 14:19:45.956 D/davdroid.WebDavCollection( 3370):   <C:href>/caldav/test1/FLDPRFX_C8EA8FAB901744CD9AAC287E5A0E184D/</C:href>
    11-03 14:19:45.956 D/davdroid.WebDavCollection( 3370):   <C:propstat>
    11-03 14:19:45.956 D/davdroid.WebDavCollection( 3370):    <C:prop>
    11-03 14:19:45.956 D/davdroid.WebDavCollection( 3370):     <D:getctag>1383484601</D:getctag>
    11-03 14:19:45.956 D/davdroid.WebDavCollection( 3370):     <C:getetag>1356823334</C:getetag>
    11-03 14:19:45.956 D/davdroid.WebDavCollection( 3370):    </C:prop>
    11-03 14:19:45.956 D/davdroid.WebDavCollection( 3370):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 14:19:45.956 D/davdroid.WebDavCollection( 3370):   </C:propstat>
    11-03 14:19:45.956 D/davdroid.WebDavCollection( 3370):  </C:response>
    11-03 14:19:45.956 D/davdroid.WebDavCollection( 3370): </C:multistatus>
    11-03 14:19:45.956 I/davdroid.SyncManager( 3370): Adding 0 remote resource(s)
    11-03 14:19:45.966 I/davdroid.SyncManager( 3370): Updating 0 remote resource(s)
    11-03 14:19:45.966 I/davdroid.SyncManager( 3370): Removing resources that are missing remotely
    11-03 14:19:45.966 I/davdroid.LocalCollection( 3370): Committing 1 operations
    11-03 14:19:46.046 I/davdroid.LocalCollection( 3370): Committing 1 operations
    11-03 14:19:46.086 I/davdroid.SyncManager( 3370): Remotely removing 0 deleted resource(s) (if not changed)
    11-03 14:19:46.116 I/davdroid.SyncManager( 3370): Uploading 0 new resource(s) (if not existing)
    11-03 14:19:46.146 I/davdroid.SyncManager( 3370): Uploading 0 modified resource(s) (if not changed)
    11-03 14:19:46.146 I/davdroid.SyncManager( 3370): Fetching remote resource list
    11-03 14:19:46.385 D/davdroid.HttpPropfind( 3370): Prepared PROPFIND request: <propfind xmlns="DAV:">
    11-03 14:19:46.385 D/davdroid.HttpPropfind( 3370):    <prop>
    11-03 14:19:46.385 D/davdroid.HttpPropfind( 3370):       <CS:getctag xmlns:CS="http://calendarserver.org/ns/"/>
    11-03 14:19:46.385 D/davdroid.HttpPropfind( 3370):       <getetag/>
    11-03 14:19:46.385 D/davdroid.HttpPropfind( 3370):    </prop>
    11-03 14:19:46.385 D/davdroid.HttpPropfind( 3370): </propfind>
    11-03 14:19:46.836 D/davdroid.WebDavCollection( 3370): Received multistatus response: <?xml version="1.0" encoding="UTF-8"?>
    11-03 14:19:46.836 D/davdroid.WebDavCollection( 3370): <C:multistatus xmlns:D="http://calendarserver.org/ns/" xmlns:C="DAV:">
    11-03 14:19:46.836 D/davdroid.WebDavCollection( 3370):  <C:response>
    11-03 14:19:46.836 D/davdroid.WebDavCollection( 3370):   <C:href>/caldav/test1/FLDPRFX_AD8C25B0EF974CC791F570C819344B37/</C:href>
    11-03 14:19:46.836 D/davdroid.WebDavCollection( 3370):   <C:propstat>
    11-03 14:19:46.836 D/davdroid.WebDavCollection( 3370):    <C:prop>
    11-03 14:19:46.836 D/davdroid.WebDavCollection( 3370):     <D:getctag>0</D:getctag>
    11-03 14:19:46.836 D/davdroid.WebDavCollection( 3370):     <C:getetag>1356310112</C:getetag>
    11-03 14:19:46.836 D/davdroid.WebDavCollection( 3370):    </C:prop>
    11-03 14:19:46.836 D/davdroid.WebDavCollection( 3370):    <C:status>HTTP/1.1 200 OK</C:status>
    11-03 14:19:46.836 D/davdroid.WebDavCollection( 3370):   </C:propstat>
    11-03 14:19:46.836 D/davdroid.WebDavCollection( 3370):  </C:response>
    11-03 14:19:46.836 D/davdroid.WebDavCollection( 3370): </C:multistatus>
    11-03 14:19:46.836 I/davdroid.SyncManager( 3370): Adding 0 remote resource(s)
    11-03 14:19:46.846 I/davdroid.SyncManager( 3370): Updating 0 remote resource(s)
    11-03 14:19:46.846 I/davdroid.SyncManager( 3370): Removing resources that are missing remotely
    11-03 14:19:46.846 I/davdroid.LocalCollection( 3370): Committing 1 operations
    11-03 14:19:46.876 I/davdroid.LocalCollection( 3370): Committing 1 operations
    11-03 14:19:46.916 I/davdroid.SyncManager( 3370): Remotely removing 0 deleted resource(s) (if not changed)
    11-03 14:19:46.946 I/davdroid.SyncManager( 3370): Uploading 0 new resource(s) (if not existing)
    11-03 14:19:46.976 I/davdroid.SyncManager( 3370): Uploading 0 modified resource(s) (if not changed)
    11-03 14:19:46.976 I/davdroid.SyncManager( 3370): Fetching remote resource list
    11-03 14:19:47.156 D/davdroid.HttpPropfind( 3370): Prepared PROPFIND request: <propfind xmlns="DAV:">
    11-03 14:19:47.156 D/davdroid.HttpPropfind( 3370):    <prop>
    11-03 14:19:47.156 D/davdroid.HttpPropfind( 3370):       <CS:getctag xmlns:CS="http://calendarserver.org/ns/"/>
    11-03 14:19:47.156 D/davdroid.HttpPropfind( 3370):       <getetag/>
    11-03 14:19:47.156 D/davdroid.HttpPropfind( 3370):    </prop>
    11-03 14:19:47.156 D/davdroid.HttpPropfind( 3370): </propfind>
    11-03 14:19:47.436 E/davdroid.DavSyncAdapter( 3370): HTTP error
    11-03 14:19:47.436 E/davdroid.DavSyncAdapter( 3370): at.bitfire.davdroid.webdav.NotFoundException: 404 Not Found
    11-03 14:19:47.436 E/davdroid.DavSyncAdapter( 3370): 	at at.bitfire.davdroid.webdav.WebDavResource.checkResponse(WebDavResource.java:126)
    11-03 14:19:47.436 E/davdroid.DavSyncAdapter( 3370): 	at at.bitfire.davdroid.webdav.WebDavResource.checkResponse(WebDavResource.java:112)
    11-03 14:19:47.436 E/davdroid.DavSyncAdapter( 3370): 	at at.bitfire.davdroid.webdav.WebDavCollection.propfind(WebDavCollection.java:65)
    11-03 14:19:47.436 E/davdroid.DavSyncAdapter( 3370): 	at at.bitfire.davdroid.resource.RemoteCollection.getMemberETags(RemoteCollection.java:58)
    11-03 14:19:47.436 E/davdroid.DavSyncAdapter( 3370): 	at at.bitfire.davdroid.syncadapter.SyncManager.synchronize(SyncManager.java:123)
    11-03 14:19:47.436 E/davdroid.DavSyncAdapter( 3370): 	at at.bitfire.davdroid.syncadapter.DavSyncAdapter.onPerformSync(DavSyncAdapter.java:54)
    11-03 14:19:47.436 E/davdroid.DavSyncAdapter( 3370): 	at android.content.AbstractThreadedSyncAdapter$SyncThread.run(AbstractThreadedSyncAdapter.java:254)
    11-03 14:19:47.506 D/SyncManager(  279): failed sync operation test1@192.168.178.55/caldav u0 (bitfire.at.davdroid), com.android.calendar, SERVER, earliestRunTime 7702905, SyncResult: stats [ numIoExceptions: 1]
    

    sorry for this very long-ish post :)




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