NC20: Can't synchronize contact "This parser only supports VCARD and VCALENDAR files"

[janci]

I see same error message in logging of nextcloud.

I did stop all davx5 clients and switch off online account in my gnome linux desktops.

When opening contacts app in webgui in nextcloud error message imediatelly popUP in log.

I find out that its happend only if user has not “recently contacts”.
User who has “recently contacts” can open contacts app without error message in log.

here is my thread about this problem

Looks that something with contacts is wrong :: This parser only supports VCARD and VCALENDAR files

I am transforming my nextcloud service to docker. So I did export calendars, contacts and save all other data to local PC. Then I did install new nextcloud in docker, configure it with new DB so it is fresh new installation. I did create user and start to uploding data. Later I did find out there following error message in log: Sabre\VObject\ParseException: This parser only supports VCARD and VCALENDAR files /config/www/nextcloud/3rdparty/sabre/vobject/lib/Parser/MimeDir.php - line 90: Sabre…