Several interfaces used in GraphBuilder 2.0.alpha
com.thinkaurelius.titan.core.TitanKey) are deprecated in Titan 0.5.0. As a
result, GraphBuilder does not work with newer releases of Titan. The main
impacted class is TitanWriterMRChain.java.
I understand Kushal and the team are working on larger upgrade (timing
TBD). But in the interim, it will be great if the team can upgrade the
software to work with the newer version of Titan, which is definitely more
functional and stable than Titan 0.4.1.