Column 10 in the attached sample dataset contains numeric identifiers to existing entity records. The mapping is to ca_objects.condition.condName, which is actually an Entity reference.
If you're in the UI, the entity reference lookup retrieves the proper entity based on identifiers 4516 and 3187.
However, when running the importer, these throw the "could not match entity id 4516" error.
Sample mapping/data attached. The system is /data/kenderdine