Enable share calendar in iCal on macOS Mojave

Steps to reproduce

  1. set ownCloud account with iCal on macOS Mojave using the following URL:https://example.com/remote.php/dav/principals/users/USERNAME/

  2. create a calendar, and share it (read/write) with user B

  3. iCal alter an error message

The iCal error message

The server responded with an error.

The request for account “ownCloud-fanping” failed.

The server responded with


to operation CalDAVUpdateShareesQueuableOperation.

The ownCloud log


“reqId”: “DvvXBWE6rGeodUjfZVlX”,

“level”: 4,

“time”: “2019-01-11T07:58:45+00:00”,

“remoteAddr”: “”,

“user”: “fanping”,

“app”: “webdav”,

“method”: “POST”,

“url”: “/remote.php/dav/calendars/fanping/0A123189-F58B-49B4-B45D-83A30FC0E228/”,

“message”: “Exception: {‘Message’:'HTTP/1.1 501 There was no plugin in the system that was willing to handle this POST method.”,

“Exception”: “SabreDAVExceptionNotImplemented”,

“Code”: 0,

“Trace”: “#0 /var/www/owncloud/lib/composer/sabre/dav/lib/DAV/Server.php(254): SabreDAVServer->invokeMethod(Object(SabreHTTPRequest), Object(SabreHTTPResponse))n #1 /var/www/owncloud/apps/dav/lib/Server.php(278): SabreDAVServer->exec()n #2 /var/www/owncloud/apps/dav/appinfo/v2/remote.php(31): OCADAVServer->exec()n#3 /var/www/owncloud/remote.php(165): require_once(’/var/www/ownclo…’)n#4 {main}”,

“File”: “/var/www/owncloud/lib/composer/sabre/dav/lib/DAV/Server.php”,

“Line”: 487,

“User”: “fanping”


Server configuration

Operating system:

macOS Mojave version10.14.2

Calendar Client:

macOs Calendar Version 11.0

ownCloud version:

ownCloud 10.0.8 (stable)

Additional Information

When i use the Calendar app of ownCloud market ;

I can share calendar normally


maybe you could first update to the most recent version 10.0.10 version first and then try again afterwards to see if this has been already solved?

I think this is generally recommended when facing any issues. Personally i’m checking if i’m running the most recent version of a software first. If a new version is available i’m updating to that version to see if i’m experiencing a bug which has been fixed in the never version.