i followed the link <http://debian.neo4j.org/> for intalling neo4j. But when i checked /etc/neo4j there is only 2 files named neo4j.conf and neo4j-wrapper.conf. There is no neo4j-server.properties. And i am unable to start neo4j using 
sudo service neo4j-service start
it retuns,
Failed to start neo4j-service.service: Unit neo4j-service.service not found.
Is there ay solution?