[Photon] Newbie Installation Issue

[Richard Marsden]

I'm trying to install and run Photon on a Ubuntu 16.04 system.

I've downloaded photo-0.3.0 and the data (photon-db-latest.tar.bz2) as
per the README.md instructions on github.

Are there any other pre-requisites?

I have never used Elasticsearch before - how does photon /
elasticsearch know where to find the data?

When I run the photon-0.3.0.jar I get a
"org.elasticsearch.index.IndexNotFoundException: no such index"
exception
when I try opening the example "http://localhost:2322/api?q=berlin" in
a browser.

Regards,

Richard Marsden