I filed a bug according this issue:
https://bugzilla.gnome.org/show_bug.cgi?id=788239
** Bug watch added: GNOME Bug Tracker #788239
https://bugzilla.gnome.org/show_bug.cgi?id=788239
** Also affects: gnome-online-accounts via
https://bugzilla.gnome.org/show_bug.cgi?id=788239
Importance:
gnome calendar also affected. So can't be an evolution only bug.
** Package changed: evolution (Ubuntu) => gnome-online-accounts (Ubuntu)
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https://bugs.launchpad.net/bugs/1719765
Title:
Public bug reported:
Evolution is not able to add new data eg. new contacts, new appointments
to nextcloud. Whenn trying I get the following error message: "... 415
(Unsupported Media Type): Sabre\DAV\Exception\UnsupportedMediaType ...".
Synchronizing from nextcloud server to client works as