Couldn't find CalDAV or CardDAV Service

[dan]

I was able to successfully set up an account and get it to work on my Samsung Tab S5e. However I can’t get my account created in my Samsung S10e cell phone. I have read the manual and FAQ multiple times. I have reinstalled multiple times. I have rebooted multiple times. I have looked through the Forum answers and found a couple with the same problem but the answers didn’t help. Any help would be appreciated. Here is the debug info:

--- BEGIN DEBUG INFO ---

LOGS:
2020-06-28 17:24:39 3669 [ui.setup.DavResourceFinder] Finding initial carddav service configuration
2020-06-28 17:24:39 3669 [ui.setup.DavResourceFinder] No principal found at user-given URL, trying to discover
2020-06-28 17:24:39 3669 [ui.setup.DavResourceFinder] Looking up SRV records for _carddavs._tcp.coralemail.com
2020-06-28 17:24:39 3669 [ui.setup.DavResourceFinder] carddav service discovery failed
EXCEPTION java.lang.ArrayIndexOutOfBoundsException: length=0; index=0
	at org.xbill.DNS.ExtendedResolver.send(ExtendedResolver.java:6)
	at org.xbill.DNS.Lookup.lookup(Lookup.java:14)
	at org.xbill.DNS.Lookup.resolve(Lookup.java:3)
	at org.xbill.DNS.Lookup.run(Lookup.java:18)
	at at.bitfire.davdroid.ui.setup.DavResourceFinder.discoverPrincipalUrl(DavResourceFinder.kt:8)
	at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:30)
	at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:1)
	at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$DetectConfigurationModel$detectConfiguration$2.invoke(DetectConfigurationFragment.kt:6)
	at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$DetectConfigurationModel$detectConfiguration$2.invoke(DetectConfigurationFragment.kt:1)
	at kotlin.concurrent.ThreadsKt$thread$thread$1.run(Thread.kt:1)

2020-06-28 17:24:39 3669 [ui.setup.DavResourceFinder] Finding initial caldav service configuration
2020-06-28 17:24:39 3669 [ui.setup.DavResourceFinder] No principal found at user-given URL, trying to discover
2020-06-28 17:24:39 3669 [ui.setup.DavResourceFinder] Looking up SRV records for _caldavs._tcp.coralemail.com
2020-06-28 17:24:39 3669 [ui.setup.DavResourceFinder] caldav service discovery failed
EXCEPTION java.lang.ArrayIndexOutOfBoundsException: length=0; index=0
	at org.xbill.DNS.ExtendedResolver.send(ExtendedResolver.java:6)
	at org.xbill.DNS.Lookup.lookup(Lookup.java:14)
	at org.xbill.DNS.Lookup.resolve(Lookup.java:3)
	at org.xbill.DNS.Lookup.run(Lookup.java:18)
	at at.bitfire.davdroid.ui.setup.DavResourceFinder.discoverPrincipalUrl(DavResourceFinder.kt:8)
	at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:30)
	at at.bitfire.davdroid.ui.setup.DavResourceFinder.findInitialConfiguration(DavResourceFinder.kt:4)
	at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$DetectConfigurationModel$detectConfiguration$2.invoke(DetectConfigurationFragment.kt:6)
	at at.bitfire.davdroid.ui.setup.DetectConfigurationFragment$DetectConfigurationModel$detectConfiguration$2.invoke(DetectConfigurationFragment.kt:1)
	at kotlin.concurrent.ThreadsKt$thread$thread$1.run(Thread.kt:1)



SOFTWARE INFORMATION
* at.bitfire.davdroid 3.1.1-gplay (301010002) from com.android.vending
* com.samsung.android.providers.contacts 11.1.04 (1110404000)
* com.android.providers.calendar 11.0.00.9 (1100000009)
* com.samsung.android.app.contacts 11.1.70.7 (1117000007)
* com.google.android.contacts 3.26.2.316952635 (2422066) from com.android.vending
* com.samsung.android.calendar 11.3.00.6 (1130000006) from com.sec.android.app.samsungapps
* com.google.android.calendar 2020.20.4-316065245-release (2016620562) from com.android.vending
* com.simplemobiletools.calendar.pro 6.9.6 (179) from com.android.vending

CONNECTIVITY (at the moment)
- [ Transports: CELLULAR Capabilities: IMS&NOT_METERED&TRUSTED&NOT_VPN&VALIDATED&NOT_ROAMING&FOREGROUND&NOT_CONGESTED&NOT_SUSPENDED LinkUpBandwidth>=51200Kbps LinkDnBandwidth>=102400Kbps Specifier: <3>]
- [ Transports: WIFI Capabilities: NOT_METERED&INTERNET&NOT_RESTRICTED&TRUSTED&NOT_VPN&VALIDATED&NOT_ROAMING&FOREGROUND&NOT_CONGESTED&NOT_SUSPENDED LinkUpBandwidth>=1048576Kbps LinkDnBandwidth>=1048576Kbps SignalStrength: -48]
- [ Transports: WIFI|VPN Capabilities: NOT_METERED&INTERNET&NOT_RESTRICTED&TRUSTED&VALIDATED&NOT_ROAMING&FOREGROUND&NOT_CONGESTED&NOT_SUSPENDED LinkUpBandwidth>=1048576Kbps LinkDnBandwidth>=1048576Kbps]

CONFIGURATION
Power saving disabled: yes
Notifications (not blocked):
  [group] sync isBlocked=false
    syncProblems: importance=3
    syncIoErrors: importance=1
    syncWarnings: importance=2
  general: importance=3
  debug: importance=4
Permissions:
  READ_CONTACTS: denied
  WRITE_CONTACTS: denied
  READ_CALENDAR: granted
  WRITE_CALENDAR: granted
  READ_TASKS: denied
  WRITE_TASKS: denied
  ACCESS_COARSE_LOCATION: denied
System-wide synchronization: automatically

APP SETTINGS
Distrust system certs: false
Override system proxy: false

ACCOUNTS

SQLITE DUMP
android_metadata
	|  locale |
	|  en_US |
----------
service
	|  id | accountName | type | principal |
----------
sqlite_sequence
	|  name | seq |
----------
homeset
	|  id | serviceId | url | privBind | displayName |
----------
collection
	|  id | serviceId | type | url | privWriteContent | privUnbind | forceReadOnly | displayName | description | color | timezone | supportsVEVENT | supportsVTODO | supportsVJOURNAL | source | sync |
----------
room_master_table
	|  id | identity_hash |
	|  42 | a7554d1ebc5ecfe0c7aefe271485d63c |
----------

SYSTEM INFORMATION
Android version: 10 (QP1A.190711.020.G970USQS3DTD5)
Device: samsung SM-G970U (beyond0q)

--- END DEBUG INFO ---

[dan]

The problem solved itself. It is working today. I guess there was a problem with the server yesterday.
I couldn’t figure out how to add a solved tag from my tablet.

[rfc2822]

Thanks for the update. There seemed to be a problem in the DNS records. However the DNS resolver shouldn’t crash in any case (like it did).

If this happens again, please let us know.