Yamaha Restful commands

ive run the rest command in the deveoper section and get an xml response back as above so i can definately communicate with the amp - for some reason the entity isnt being created and the logs above suggest theres something wrong - not sure if something wrong with the rest itself or the commands

I would try to narrow down where the problem is. Try to set up a sensor with this command but without evaluating the result - just get the entire XML that is being returned into the sensor - by that you’ll see if it is a problem with getting data from the amp at all or maybe with parsing the XML result.