Error in migration of new template entities in 2025.12 depretated in 2026.6

Configuration
, ,
1

Hello,
After read some topics as:

I migrate my old code to the new code, but I’ve an error that can’t solve…
in my configuration.yaml i’ve:

sensor: !include sensors.yaml

And in the sensors.yaml:

  template:
    - default_entity_id: sensor.aemet_dir_viento_texto
      name: "Dirección viento"
      state: >-
          {% if ( states('sensor.aemet_wind_bearing') | float < 22.5 ) %}
              Norte
          {% elif ( states('sensor.aemet_wind_bearing') | float < 67.5 ) %}
              Noreste
          {% elif ( states('sensor.aemet_wind_bearing') | float < 112.5 ) %}
              Este
          {% elif ( states('sensor.aemet_wind_bearing') | float < 157.5 ) %}
              Sureste
          {% elif ( states('sensor.aemet_wind_bearing') | float < 202.5 ) %}
              Sur
          {% elif ( states('sensor.aemet_wind_bearing') | float < 247.5 ) %}
              Suroeste
          {% elif ( states('sensor.aemet_wind_bearing') | float < 292.5 ) %}
              Oeste
          {% elif ( states('sensor.aemet_wind_bearing') | float < 337.5 ) %}
              Cierzo
          {% else %}
              Norte
          {% endif %}

    - default_entity_id: a_a_recibidor_planta_baja_estado
      name: "Estado del A/A del recibidor de la planta baja"
      state: >-
          {% if ( states('sensor.medidor_corriente_a_a_planta_baja_power_a') | float > 0 ) %}
              on
          {% else %}
              off
          {% endif %}

    - default_entity_id: a_a_rellano_1a_planta_estado
      name: "Estado del A/A del rellano de la 1ª planta"
      state: >-
          {% if ( states('sensor.medidor_corriente_a_a_1a_planta_power_a') | float > 0 ) %}
              on
          {% else %}
              off
          {% endif %}

    - default_entity_id: sensor.a_a_buhardilla_escaleras_estado
      name: "Estado del A/A de la buhardilla y escaleras"
      state: >-
          {% if ( states('sensor.medidor_corriente_a_a_buhardilla_power_a') | float > 0 ) %}
              on
          {% else %}
              off
          {% endif %}

But now I’ve a new error: Invalid config for ‘sensor’ at configuration.yaml, required key ‘platform’ not provided.
I read the docs in Sensor - Home Assistant, and include as it’s says, but i’m wrong, sure, but I can’t find my mistake…
Anyone with the same problem?
Regards

2

You did not read those topics very well.

None of that goes in sensors.yaml.

Put this in your configuration.yaml:

sensor: !include sensors.yaml
template: !include templates.yaml

Put this in templates.yaml

- sensor:
    - default_entity_id: sensor.aemet_dir_viento_texto
      name: "Dirección viento"
      state: >
          {% if ( states('sensor.aemet_wind_bearing') | float < 22.5 ) %}
              Norte
          {% elif ( states('sensor.aemet_wind_bearing') | float < 67.5 ) %}
              Noreste
          {% elif ( states('sensor.aemet_wind_bearing') | float < 112.5 ) %}
              Este
          {% elif ( states('sensor.aemet_wind_bearing') | float < 157.5 ) %}
              Sureste
          {% elif ( states('sensor.aemet_wind_bearing') | float < 202.5 ) %}
              Sur
          {% elif ( states('sensor.aemet_wind_bearing') | float < 247.5 ) %}
              Suroeste
          {% elif ( states('sensor.aemet_wind_bearing') | float < 292.5 ) %}
              Oeste
          {% elif ( states('sensor.aemet_wind_bearing') | float < 337.5 ) %}
              Cierzo
          {% else %}
              Norte
          {% endif %}

    - default_entity_id: a_a_recibidor_planta_baja_estado
      name: "Estado del A/A del recibidor de la planta baja"
      state: >
          {% if ( states('sensor.medidor_corriente_a_a_planta_baja_power_a') | float > 0 ) %}
              on
          {% else %}
              off
          {% endif %}

    - default_entity_id: a_a_rellano_1a_planta_estado
      name: "Estado del A/A del rellano de la 1ª planta"
      state: >
          {% if ( states('sensor.medidor_corriente_a_a_1a_planta_power_a') | float > 0 ) %}
              on
          {% else %}
              off
          {% endif %}

    - default_entity_id: sensor.a_a_buhardilla_escaleras_estado
      name: "Estado del A/A de la buhardilla y escaleras"
      state: >
          {% if ( states('sensor.medidor_corriente_a_a_buhardilla_power_a') | float > 0 ) %}
              on
          {% else %}
              off
          {% endif %}

Those last three sensors should be binary sensors as they only have two states.

If you need further help migrating the config then post in the pinned help topic. https://community.home-assistant.io/t/deprecation-of-legacy-template-entities-in-2025-12/955562

2 Likes
3

Hello @tom_l ,
First of all, thanks for your quick response,and sorry for my late reply (I was sick).
I read about template.yaml, but I thought, it can works too in sensors (my fault).
After this change, works perfectly (I changed to binary_sensors the on/off sensors).
Thank you one more time for your time (and your patience).
Regards

4

Thank you for your reply. Now I understand how it works, unlike what is stated in the topics, which is very confusing.