On one of our projects, each morning; when opening a page containing a page view of a solr index; the following error occures:
Error: Call to undefined method Drupal\search_api\Entity\Index::isIndexingEmptyIndex() in Drupal\search_api_solr\Plugin\search_api\backend\SearchApiSolrBackend->deleteItems() (regel 1471 van /[WEBROOT]/modules/contrib/search_api_solr/src/Plugin/search_api/backend/SearchApiSolrBackend.php).
When clearing the cache or re-indexing the problem gets fixed and the site works for a while.
/** @var \Drupal\search_api_solr\Entity\Index $index */
if ($index->isIndexingEmptyIndex()) {
return;
}
When running the code above, the class given is \Drupal\search_api\Entity\Index (hence, not search_api_solr but search_api).
The problems started after updating to the most recent versions for search_api + search_api_solr. Any advice on how to fix this are greatly appreciated.
Active
4.3
Code
It seems that search_api_solr_entity_type_alter() doesn't work correctly on your system. Or another server or instance overwrites the cached container.
Update, after recreating the SOLR configuration in both Drupal and the SOLR server i cannot reproduce this problem on the same installation. Probably an error made during configuration.