- 🇳🇱Netherlands Martijn Houtman
I know this is a very old ticket, but I ran into this message this week, and found out it was due to a field that was added to the index, while the bundle that the field belongs to was excluded from being indexed. I think this happened to us due to a faulty git merge, but I think it might also happen if you add the field first, and then after exclude the bundle that the field belongs to. Saving the field list again will remove the field, as it should, but as long as you do not re-save the field list, the error seems to pop up.
Related ticket: https://www.drupal.org/project/search_api/issues/2769759#comment-15217836 🐛 Could not retrieve data definition for field / Column 'server_id' cannot be null Closed: cannot reproduce