java.lang.IllegalArgumentException: Label must be given
at com.tinkerpop.blueprints.impls.sparksee.SparkseeGraph.createKeyIndex(SparkseeGraph.java:699)
at com.tinkerpop.blueprints.oupls.sail.GraphSail.<init>(GraphSail.java:144)
at com.tinkerpop.blueprints.oupls.sail.GraphSail.<init>(GraphSail.java:109)
at SPARQLPlugin.initSail(SPARQLPlugin.java:35)
at SPARQLPlugin.main(SPARQLPlugin.java:49)
try {
KeyIndexableGraph sGraph = new SparkseeGraph("bsbm.gdb","sparksee.cfg");
sail = new GraphSail<KeyIndexableGraph>(sGraph); //line 35
sail.initialize();
sc = new SailRepository(sail).getConnection();
parser = new SPARQLParser();
} catch (Exception e) {
e.printStackTrace();
}