Cannot add conversion to queue in Arista Transcoder

Arista Transcoder doesn't work in openSUSE 12.1. It always throws an error. I tried to install plugins from the openSUSE repo but it also didn't work. The error stated that there is a missing elements and that's why I cannot add the conversion. How will I be able to resolve this?

Cannot add conversion to queue because of missing elements!
OK
