noEntitiesForPreview example

$repository = $this->getRepository($config);

        $criteria = new Criteria();
        if ($previewCriteria !== null) {
            $criteria = $previewCriteria;
        }
        $criteria->setLimit(10);

        $ids = $repository->searchIds($criteria, $context)->getIds();

        if (empty($ids)) {
            throw SeoException::noEntitiesForPreview($repository->getDefinition()->getEntityName(), $seoUrlTemplate['routeName']);
        }

        $salesChannelId = $seoUrlTemplate['salesChannelId'] ?? null;
        $template = $seoUrlTemplate['template'] ?? '';

        if (\is_string($salesChannelId)) {
            /** @var SalesChannelEntity|null $salesChannel */
            $salesChannel = $this->salesChannelRepository->search((new Criteria([$salesChannelId]))->setLimit(1), $context)->get($salesChannelId);

            if ($salesChannel === null) {
                throw SeoException::invalidSalesChannelId($salesChannelId);
            }