nextcloud/server · error · MethodNotAllowed

The resource you tried to create has a reserved name

Error message

The resource you tried to create has a reserved name

What it means

Error "The resource you tried to create has a reserved name" thrown in nextcloud/server.

Source

Thrown at apps/dav/lib/CalDAV/CalendarHome.php:80

	/**
	 * @return BackendInterface
	 */
	public function getCalDAVBackend() {
		return $this->caldavBackend;
	}

	/**
	 * @inheritdoc
	 */
	#[\Override]
	public function createExtendedCollection($name, MkCol $mkCol): void {
		$reservedNames = [
			BirthdayService::BIRTHDAY_CALENDAR_URI,
			TrashbinHome::NAME,
		];

		if (\in_array($name, $reservedNames, true) || ExternalCalendar::doesViolateReservedName($name)) {
			throw new MethodNotAllowed('The resource you tried to create has a reserved name');
		}

		parent::createExtendedCollection($name, $mkCol);
	}

	/**
	 * @inheritdoc
	 */
	#[\Override]
	public function getChildren() {
		if ($this->cachedChildren) {
			return $this->cachedChildren;
		}
		$calendars = $this->caldavBackend->getCalendarsForUser($this->principalInfo['uri']);
		$objects = [];
		foreach ($calendars as $calendar) {
			$objects[] = new Calendar($this->caldavBackend, $calendar, $this->l10n, $this->config, $this->logger);
		}

View on GitHub (pinned to ecdeb153ff)

When it happens

Trigger: Thrown at apps/dav/lib/CalDAV/CalendarHome.php:80 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of nextcloud/server@ecdeb153ff (2026-08-17). Data as JSON: /api/errors/3af891e4aab7329c. Report an issue: GitHub.