I am trying to combine several shelly sensors into one.
For example, I would like to display the room living room in the energy dashboard and not have all the sensors individually in the dashboard.
I have the helper function “combine the state of multiple sensors” the shelly devices together and selected the function sum.
but now when i select the sensor in the energy dashboard, i get the following error message:
Unexpected device class. The following entities do not have the expected device class: sensor.livingroom Last reset missing The following entities have the state class "measurement", but "last_reset" is missing: sensor.livingroom
can someone please explain me what i am doing wrong?