InvalidDavResponseException: Expected 207 Multi-Status, got 200 OK

[voxspox]

I’m using Davdroid since a long time now and it had worked very fine. Recently sychronization stopped working and I get an InvalidDavResponseException (see below). This happens only for accounts on a Horde Server (v5.2.13). I didn’t change the configuration and only kept DAVdroid up-to-date.

The error appears for calender and tasks.

I have another Android phone were sychronization still works with an old version of DAVdroid (3.x). Thus I tried to downgrade on my (first) phone but this did not fix the error.

Next, I created a new DAVdroid account using the same settings as an existing account. The error message “Couln’d refresh collection list” appears.

I could narrow down the steps to reproduce the error message to tapping on “refresh calendar list” in the CalDAV context menu in the account settings.

---

SYNCHRONIZATION INFO
Synchronization phase: 1
Account name: account1
Authority: com.android.calendar

EXCEPTION:
at.bitfire.dav4android.exception.InvalidDavResponseException: Expected 207 Multi-Status, got 200 OK
	at at.bitfire.dav4android.DavResource.assertMultiStatus(DavResource.java:324)
	at at.bitfire.dav4android.DavResource.propfind(DavResource.java:277)
	at at.bitfire.davdroid.syncadapter.CalendarSyncManager.queryCapabilities(CalendarSyncManager.java:91)
	at at.bitfire.davdroid.syncadapter.SyncManager.performSync(SyncManager.java:142)
	at at.bitfire.davdroid.syncadapter.CalendarsSyncAdapterService$SyncAdapter.onPerformSync(CalendarsSyncAdapterService.java:70)
	at android.content.AbstractThreadedSyncAdapter$SyncThread.run(AbstractThreadedSyncAdapter.java)

SOFTWARE INFORMATION
DAVdroid version: 1.4.0.3-ose (138) Mon Feb 20 01:10:19 CET 2017
Installed from: org.fdroid.fdroid
JB Workaround installed: no

Android version: 4.2.2

… and tasks:

SYNCHRONIZATION INFO
Synchronization phase: 1
Account name: account1
Authority: org.dmfs.tasks

EXCEPTION:
at.bitfire.dav4android.exception.InvalidDavResponseException: Expected 207 Multi-Status, got 200 OK
	at at.bitfire.dav4android.DavResource.assertMultiStatus(DavResource.java:324)
	at at.bitfire.dav4android.DavResource.propfind(DavResource.java:277)
	at at.bitfire.davdroid.syncadapter.TasksSyncManager.queryCapabilities(TasksSyncManager.java:89)
	at at.bitfire.davdroid.syncadapter.SyncManager.performSync(SyncManager.java:142)
	at at.bitfire.davdroid.syncadapter.TasksSyncAdapterService$SyncAdapter.onPerformSync(TasksSyncAdapterService.java:78)
	at android.content.AbstractThreadedSyncAdapter$SyncThread.run(AbstractThreadedSyncAdapter.java)

new account, same error, different location:

EXCEPTION:
at.bitfire.dav4android.exception.InvalidDavResponseException: Expected 207 Multi-Status, got 200 OK
	at at.bitfire.dav4android.DavResource.assertMultiStatus(DavResource.java:324)
	at at.bitfire.dav4android.DavResource.propfind(DavResource.java:277)
	at at.bitfire.davdroid.DavService$RefreshCollections.run(DavService.java:242)
	at java.lang.Thread.run(Thread.java)

[rfc2822]

Seems to be a server problem. Did you ask Horde support?

[voxspox]

hmm, if it is a server problem, why the second phone still works?

[voxspox]

ok, issue solved!

It was a problem with Horde. I shared a calendar with another user who is on another server. Every time I clicked the calendar in the web interface, I was logged out. After a while the link to the problem described here came into my mind. Now problem is fixed.