50     LOG(ERROR) << "Could not serialize namespaces";  in FromDataAndSerializeNamespaces()
60     LOG(ERROR) << "Node name is empty";  in CreateSerializer()
65     LOG(ERROR) << "Prefix " << node_ns_name << " not found in prefix list";  in CreateSerializer()
81     LOG(ERROR) << "No RDF prefix namespace found";  in CreateItemSerializer()
85     LOG(ERROR) << "No namespace found for " << prefix;  in CreateItemSerializer()
89     LOG(ERROR) << "No rdf:Seq node for serializing this item";  in CreateItemSerializer()
109     LOG(ERROR) << "No RDF prefix namespace found";  in CreateListSerializer()
113     LOG(ERROR) << "No namespace found for " << prefix;  in CreateListSerializer()
138     LOG(ERROR) << "Cannot write a property on an rdf:Seq node";  in WriteProperty()
142     LOG(ERROR) << "Property name is empty";  in WriteProperty()
148     LOG(ERROR) << "No namespace found for prefix " << prefix;  in WriteProperty()
162     LOG(ERROR) << "Cannot write a property on an rdf:Seq node";  in WriteIntArray()
166     LOG(WARNING) << "No values to write";  in WriteIntArray()
171     LOG(ERROR) << "No RDF prefix found";  in WriteIntArray()
175     LOG(ERROR) << "No namespace found for " << prefix;  in WriteIntArray()
179     LOG(ERROR) << "Parent name cannot be empty";  in WriteIntArray()
206     LOG(ERROR) << "Cannot write a property on an rdf:Seq node";  in WriteDoubleArray()
210     LOG(WARNING) << "No values to write";  in WriteDoubleArray()
215     LOG(ERROR) << "No RDF prefix found";  in WriteDoubleArray()
219     LOG(ERROR) << "No namespace found for " << prefix;  in WriteDoubleArray()
223     LOG(ERROR) << "Parent name cannot be empty";  in WriteDoubleArray()