Subject is not in the domain of a property or trying to set multiple values for a single valued property.
The property is not completely defined.
Internal error.
The ontology doesn't contain nrl:lastModified header
There was no disk space available to perform the request.
The specified ontology wasn't found.
Problem encounted while opening the database.
Error parsing the SPARQL string.
Problem while executing the query.
Type constraint failed when trying to insert data.
Unknown class.
Unknown graph.
Unknown property.
Unsupported feature or method.
The total number of error codes.
Error domain for Tracker Sparql. Errors in this domain will be from the #TrackerSparqlError enumeration. See #GError for more information on error domains.