Configure Rexster to use Titan - titan

Question

I'm trying to configure Rexster to use Titan by modifying the rexster.xml file in Rexster.
But when I run
http ://localhost:8182/graphs/mygraph
in my browser I get a message saying:
{"message":"Graph [mygraph] could not be found"}.
This is the part of the rexster.xml file I've modified:
<graph>
<graph-name>mygraph</graph-name>
<graph-type>com.thinkaurelius.titan.tinkerpop.rexster.TitanGraphConfiguration</graph-type>
<graph-location>C:/titan-server-jre6-0.4.4/bin/mygraph</graph-location>
<graph-read-only>false</graph-read-only>
<properties>
<storage.backend>local</storage.backend>
<buffer-size>100</buffer-size>
</properties>
<extensions>
<allows>
<allow>tp:gremlin</allow>
</allows>
</extensions>
</graph>
I've added all the jar files in Titans lib folder into Rexster under config/ext/titan and I've created a graph in Titan by using the gremlin shell i Titan:
g = TitanFactory.open('mygraph');
g.createKeyIndex('name', Vertex.class);
v = g.addVertex(null);
v.setProperty('name','x');
v.setProperty('type','person');
v.setProperty('age',20);
v1 = g.addVertex(null);
v1.setProperty('name','y');
v1.setProperty('type','person');
v1.setProperty('age',22);
e = g.addEdge(null, v, v1, 'knows');
e1 = g.addEdge(null, v1, v, 'knows');
g.shutdown();
What am I missing?
[UPDATE]:
I had placed the jar files from Titan in the wrong directory in rexster, the are now in the right place in rexster. But when I now run the rexster server I get the following output:
[INFO] Application - .:Welcome to Rexster:.
[INFO] RexsterProperties - Using [C:\rexster-server-2.5.0\config\rexster.xml] as
configuration source.
[INFO] Application - Rexster is watching [C:\rexster-server-2.5.0\config\rexster
.xml] for change.
Exception in thread "main" java.lang.AbstractMethodError: com.thinkaurelius.tita
n.tinkerpop.rexster.TitanGraphConfiguration.configureGraphInstance(Lcom/tinkerpo
p/rexster/config/GraphConfigurationContext;)Lcom/tinkerpop/blueprints/Graph;
at com.tinkerpop.rexster.config.GraphConfigurationContainer.getGraphFrom
Configuration(GraphConfigurationContainer.java:124)
at com.tinkerpop.rexster.config.GraphConfigurationContainer.<init>(Graph
ConfigurationContainer.java:54)
at com.tinkerpop.rexster.server.XmlRexsterApplication.reconfigure(XmlRex
sterApplication.java:99)
at com.tinkerpop.rexster.server.XmlRexsterApplication.<init>(XmlRexsterA
pplication.java:47)
at com.tinkerpop.rexster.Application.<init>(Application.java:97)
at com.tinkerpop.rexster.Application.main(Application.java:189)
How can I resolve this?

Answer 1

Problem solved by changing the version of the rexster server, before I was using version 2.5.0. I am now using version 2.4.0 and version 0.4.4 of Titan.