Create Switch / Button for Denon.avr.command ! Help

Hi!

I want a Special command for my Denon to Control my HDMI Outputs but i dont get it :confused:

When i Control with Developer Service Commands it Works Fine!

Now i must create a Switch Right?

I type That in the Yaml conf but something is Wrong :disappointed:

Error: Invalid config for [switch]: required key not provided @ data[‘platform’]. Got None. (See /config/configuration.yaml, line 66).

Can you help me?