OwnCloud returns invalid PREF value

[dav--noob]

I got the calendar sync fully working but I don’t manage to sync contacts between owncloud and android. I read configurations, faq and also searched for related topics in this forum, but I am still clueless.

Steps to reproduce:

• Exported android contacts using True Phone app.
• Imported android contacts in owncloud using import tool in contact app.
• After a while, android will give me a warning saying “error while downloading remote entries”.

See log here:
http://paste.fedoraproject.org/386252/67200518/

I am running ownCloud 9.0.1 (stable) and Contacts app in owncloud is the latest version (1.3.1.0)

What exactly does this error mean?
Any help would be appreciated. Thanks a lot.

[rfc2822]

@dav–noob Seems like OwnCloud serves unparsable VCards:

java.lang.IllegalStateException: [Error 15] PREF parameter value is malformed and could not be parsed. Retrieve its raw text values instead by calling property.getParameters().get(“PREF”).

To see the actual VCard, we would require logs.

I guess it’s because OwnCloud sends a VCard3-style PREF in a VCard 4, although PREF is an integer between 1 and 100 in VCard 4.

[rfc2822]

I have verified the problem:

1. Exporting contacts from Android generates a VCard 2.1 with lines like TEL;CELL;PREF:+12345.
2. Import this into OwnCloud.
3. Request the VCard with Accept: text/vcard; version=4.0 and OwnCloud serves a VCard 4 with this line: TEL;CELL=;PREF=:+12345. The missing value for PREF is not allowed and thus causes problems.

I have created an OwnCloud Contacts bug report for this problem, please follow up there.

[dav--noob]

Hello, thanks a lot for your answer.

You were right about the wrong vcard format and it pointed me in the direction to temporarily solve the issue.
I exported all contacts again using another app: https://f-droid.org/wiki/page/am.ed.exportcontacts
I can’t see which vcard format this app uses, but it worked okay with Owncloud.

[SavageCore]

@dav–noob Interesting. I deleted all contacts on Owncloud, exported with am.ed.exportcontacts, imported to Owncloud, tried sync and got the same error 15.

[rfc2822]

Please see also: ez-vcard [Feature] Ignore invalid PREF parameter #76

[rfc2822]

From vcard4android/628ef73f, DAVdroid will ignore invalid PREF values.

[rfc2822]

DAVdroid 1.3.6 now ignores invalid PREF values. Please update to the latest DAVdroid version and synchronize again.