I think I am over complicating this. I am trying to fix the layout so that the error goes away. I have sensor in a separate folder. sensor: !include sensors.yaml It is asking for platform. Invalid config for 'sensor' at configuration.yaml, line 17: required key 'platform' not provided I can not …

[image] riggs498: I can not have it in a separate file any more? If you have defined your sensors in a separate file, you need to remove all references to them in your configuration.yaml Show us your config file and we will be able to point you to the issue(s).

If this is related to Template Sensors, please see: [image] Deprecation of legacy template entities in 2025.12 Configuration TLDR: Legacy template entities (alarm_control_panel, binary_sensor, cover, fan, light, lock, sensor, switch, vacuum, weather) are being…

All the sensors have to be in the configuration.yaml file now correct? That is the way I am reading it.

No, not unless you want to move them there. The only thing that needs to move out of sensors.yaml are Template sensors… everything else can stay there. The above-linked thread has dozens of examples showing the various ways to migrate legacy template sensor configuration to the current syntax. Th…

That whole file is value_templates. I can’t wrap my head around it. I will figure out a different way to do this.

configuration.yaml # Configure a default setup of Home Assistant (frontend, api, etc) default_config: # Text to speech tts: !include tts.yaml homeassistant: customize: !include customize.yaml allowlist_external_dirs: - /media group: !include groups.yaml automation: !include automations.yaml…

[image] riggs498: This is my sensors.yaml template: Remove the template: Start your file with sensor: and adjust the indentations

[image] Sourcer63: Remove the template: Start your file with sensor: and adjust the indentations That will not fix the problem. [image] riggs498: This is my sensors.yaml You didn’t do any of the syntax conversions… [image] riggs498: This is so messed up that my binary_sensors.ya…

[image] Didgeridrew: That will not fix the problem. Well, it would eliminate the the error message (line 17 in config - I had only looked at that. :innocent: Your suggestion to move everything back to restore where the OP started from and apply the migration tool is the best way to go.

I am trying to get the migration tool working at the moment.

Sensor Layout before 2026.6

Configuration

Didgeridrew February 23, 2026, 4:09pm 3

If this is related to Template Sensors, please see: