nextcloud/server · error · InvalidArgumentException

User <$userId> not found.

Error message

User <$userId> not found.

What it means

Symfony\Component\Console\Exception\InvalidArgumentException thrown by the occ dav:export-calendar command (apps/dav/lib/Command/ExportCalendar.php:61) when the user id passed as first argument does not exist in the user backend. The command refuses to continue before touching the calendar manager.

Source

Thrown at apps/dav/lib/Command/ExportCalendar.php:61

	#[\Override]
	protected function configure(): void {
		$this->setName('calendar:export')
			->setDescription('Export calendar data from supported calendars to disk or stdout')
			->addArgument('uid', InputArgument::REQUIRED, 'Id of system user')
			->addArgument('uri', InputArgument::REQUIRED, 'URI of calendar')
			->addOption('format', null, InputOption::VALUE_REQUIRED, 'Format of output (ical, jcal, xcal) defaults to ical', 'ical')
			->addOption('location', null, InputOption::VALUE_REQUIRED, 'Location of where to write the output. Defaults to stdout');
	}

	#[\Override]
	protected function execute(InputInterface $input, OutputInterface $output): int {
		$userId = $input->getArgument('uid');
		$calendarId = $input->getArgument('uri');
		$format = $input->getOption('format');
		$location = $input->getOption('location');

		if (!$this->userManager->userExists($userId)) {
			throw new InvalidArgumentException("User <$userId> not found.");
		}
		// retrieve calendar and evaluate if export is supported
		$calendars = $this->calendarManager->getCalendarsForPrincipal('principals/users/' . $userId, [$calendarId]);
		if ($calendars === []) {
			throw new InvalidArgumentException("Calendar <$calendarId> not found.");
		}
		$calendar = $calendars[0];
		if (!$calendar instanceof ICalendarExport) {
			throw new InvalidArgumentException("Calendar <$calendarId> does not support exporting");
		}
		// construct options object
		$options = new CalendarExportOptions();
		// evaluate if provided format is supported
		if (!in_array($format, ExportService::FORMATS, true)) {
			throw new InvalidArgumentException("Format <$format> is not valid.");
		}
		$options->setFormat($format);
		// evaluate if a valid location was given and is usable otherwise output to stdout

View on GitHub (pinned to ecdeb153ff)

Solutions

1. List valid ids with occ user:list and re-run with the exact uid
2. If the user should come from LDAP/external backend, verify that backend is configured and reachable (occ user:lastseen, occ ldap:test-config)
3. Re-run the command with a uid that userExists() confirms

Example fix

# before
occ dav:export-calendar alic example-personal
# after
occ user:list | grep -i alic   # find exact id, e.g. 'alice'
occ dav:export-calendar alice personal

// programmatic callers: verify the uid first
if (!$userManager->userExists($uid)) {
    throw new RuntimeException("Unknown user $uid - run occ user:list");
}

try {
    $commandTester->execute(['uid' => $uid, 'uri' => $uri]);
} catch (\Symfony\Component\Console\Exception\InvalidArgumentException $e) {
    // message contains the offending argument; fix inputs and re-run
}

When it happens

Trigger: occ dav:export-calendar <uid> <calendar-uri> [--format=ical|jcal|xcal] [--location=...] where <uid> is not returned by IUserManager::userExists() - typo'd id, deleted user, or wrong user backend (e.g. user only exists in LDAP but LDAP is unreachable).

Common situations: Typo in the uid; running the command before provisioning the user; LDAP/external user backend temporarily unavailable so userExists() fails; copy-pasting examples that contain placeholder names.

Related errors

• Calendar <$calendarId> not found.
• User <$userId> not found.
• Calendar <$calendarId> does not support exporting
• Calendar <$calendarId> not found
• Format <$format> is not valid.

AI-assisted analysis of nextcloud/server@ecdeb153ff (2026-08-17). Data as JSON: /api/errors/554deb92b43b857e. Report an issue: GitHub.