UndefinedError: 'value' is undefined?

[123 (Taras)]

@Kabala

Even if I only use the value template I get the same error.

This will also produce an error in the Template Editor:

{{ x + 1 }}

Why? Because the variable named x is undefined.

In your template, the variable named value is undefined. It will be defined only when the template is used in an operational Template Sensor. In your case, value will contain the data received by sensor.abfall_restmull via the Waste Collection Schedule integration.

The warning message you received is due to this:

Templating changes in 2021.10.0

Note This topic was created prior to the release of 2021.10.0 and was meant to inform the community of important upcoming changes to certain aspects of templating. After the release of 2021.10.0, petro posted many examples of how to adapt templates to comply with the new requirements. I recommend reviewing the examples before posting questions. I skimmed the pre-release notes and selected several notable templating improvements and modifications. Breaking Change Several existing functi…