If sensor is on-line template

Configuration Frontend
1

Hello, i try to do template for one of my sensors, which is not all the time up and online.
I want to display 0 or “not available” in case the sensor is offline and did this template:

  - platform: template
    nodemcu_ds18b20_bme280_temperature:
    entitiy_id: sensor.nodemcu_ds18b20_bme280_temperature
    friendly_name: 'Huidige opbrengst'
    value_template: "{{ sensor.nodemcu_ds18b20_bme280_temperature | replace('unknown','0') }}"

but have this error:

ha core check
Error: Testing configuration at /config
INFO:homeassistant.util.package:Attempting install of httplib2==0.10.3
Failed config
  sensor.template:
    - Invalid config for [sensor.template]: [nodemcu_ds18b20_bme280_temperature] is an invalid option for [sensor.template]. Check: sensor.template->nodemcu_ds18b20_bme280_temperature. (See ?, line ?).

what i doing wrong ?

2 
- platform: template
  sensors:
    nodemcu_ds18b20_bme280_temperature:
      friendly_name: 'Huidige opbrengst'
      value_template: "{{ states('sensor.nodemcu_ds18b20_bme280_temperature') |float | replace('unknown','0') }}"
3

it is in separate file sensors.yaml already. should i describe again that is sensors: ?

4

The template sensor platform has a requirement for you to use the sensors key, and list your template sensor constructs beneath.

5

fixed.


  - platform: template
    sensors:
      nodemcu_ds18b20_bme280_temperature:
        friendly_name: "Huidige opbrengst"
        value_template: "{{ sensor.nodemcu_ds18b20_bme280_temperature | replace('non-numeric','0') }}"
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