Multiple switch template crashing HA

Configuration
1

I’m obviously missing something crucial here. The logic works fine in the Developer tools, and have based the rest of it on the templating docs. But I can’t figure out why HA throws a wobbly at this.

What am I doing wrong?! Suggestions gratefully received…

- platform: template
  sensors:
    awc_status:
        friendly_name: 'AWC Status'           
        value_template: >
              {% if is_state('switch.tapo_10', 'on') 
                 and is_state('switch.tapo_13', 'on') %}
                Overflow
              {% elif  is_state('switch.tapo_10', 'off')  
                 and is_state('switch.tapo_13', 'off') %}
                Standby
              {% elif  is_state('switch.tapo_10', 'on')  
                 and is_state('switch.tapo_13', 'off') %}
                Drain
              {% elif  is_state('switch.tapo_10', 'off')  
                 and is_state('switch.tapo_13', 'on') %}
                Fill
              {% else %}
                Error
              {% endif %}

Actually appears to break HA in some way (won’t restart / check config without throwing errors).

The logs show:

Traceback (most recent call last):
File “/usr/src/homeassistant/homeassistant/config.py”, line 895, in async_process_component_config
p_validated = platform.PLATFORM_SCHEMA(p_config) # type: ignore
File “/usr/local/lib/python3.9/site-packages/voluptuous/validators.py”, line 218, in call
return self._exec((Schema(val) for val in self.validators), v)
File “/usr/local/lib/python3.9/site-packages/voluptuous/validators.py”, line 337, in _exec
v = func(v)
File “/usr/local/lib/python3.9/site-packages/voluptuous/schema_builder.py”, line 272, in call
return self._compiled([], data)
File “/usr/local/lib/python3.9/site-packages/voluptuous/schema_builder.py”, line 817, in validate_callable
return schema(data)
File “/usr/local/lib/python3.9/site-packages/voluptuous/schema_builder.py”, line 272, in call
return self._compiled([], data)
File “/usr/local/lib/python3.9/site-packages/voluptuous/schema_builder.py”, line 594, in validate_dict
return base_validate(path, iteritems(data), out)
File “/usr/local/lib/python3.9/site-packages/voluptuous/schema_builder.py”, line 386, in validate_mapping
cval = cvalue(key_path, value)
File “/usr/local/lib/python3.9/site-packages/voluptuous/schema_builder.py”, line 817, in validate_callable
return schema(data)
File “/usr/src/homeassistant/homeassistant/helpers/config_validation.py”, line 489, in verify
return cast(dict, schema(value))
File “/usr/local/lib/python3.9/site-packages/voluptuous/schema_builder.py”, line 272, in call
return self._compiled([], data)
File “/usr/local/lib/python3.9/site-packages/voluptuous/schema_builder.py”, line 594, in validate_dict
return base_validate(path, iteritems(data), out)
File “/usr/local/lib/python3.9/site-packages/voluptuous/schema_builder.py”, line 386, in validate_mapping
cval = cvalue(key_path, value)
File “/usr/local/lib/python3.9/site-packages/voluptuous/validators.py”, line 215, in _run
return self._exec(self._compiled, value, path)
File “/usr/local/lib/python3.9/site-packages/voluptuous/validators.py”, line 339, in _exec
v = func(path, v)
File “/usr/local/lib/python3.9/site-packages/voluptuous/schema_builder.py”, line 817, in validate_callable
return schema(data)
File “/usr/src/homeassistant/homeassistant/helpers/config_validation.py”, line 750, in validator
if key in config:
TypeError: argument of type ‘NoneType’ is not iterable

2

Your error is outside the code you posted. Please post the entirety of the file that you placed the above code into.

3

Quite right. After a reboot… it suddenly works. Hmmph.

Thanks, though!