Flux TypeError: '<=' not supported between instances of 'NoneType' and 'datetime.datetime'

[gislis2]

The problem

Flux doesn't initiate. I believe it worked on 2021.3.x and stopped working on 2021.4.x Moved to a fresh installation and receive the same error

When I split up the configuration.yaml into a seperate file the Flux integration loads but gives the error when toggled

switch: !include switch.yaml

and switch.yaml:

- platform: flux
  name: Flux
  lights:
    - light.livingroom_tv_backlight
    - light.livingroom_reading
    - light.livingroom_desklamp
    - light.livingroom_cerberus_top
    - light.livingroom_cerberus_middle
    - light.livingroom_cerberus_bottom
    - light.livingroom_ceiling
    - light.kitchen_lightstrip
    - light.kitchen_hallway_ceiling_south
    - light.kitchen_dinnertable
    - light.nanoleaf

    - light.bedroom_nightstand
    - light.bedroom_ceiling_south
    - light.bedroom_ceiling_north

What is version of Home Assistant Core has the issue?

core-2021.5.5

What was the last working version of Home Assistant Core?

core-2021.3.x

What type of installation are you running?

Home Assistant Container

Integration causing the issue

Flux

Link to integration documentation on our website

https://www.home-assistant.io/integrations/flux/

Example YAML snippet

switch:
  - platform: flux
    name: Flux
    lights:
      - light.livingroom_tv_backlight
      - light.livingroom_reading
      - light.livingroom_desklamp
      - light.livingroom_cerberus_top
      - light.livingroom_cerberus_middle
      - light.livingroom_cerberus_bottom
      - light.livingroom_ceiling
      - light.kitchen_lightstrip
      - light.kitchen_hallway_ceiling_south
      - light.kitchen_dinnertable
      - light.nanoleaf
      - light.bedroom_nightstand
      - light.bedroom_ceiling_south
      - light.bedroom_ceiling_north

Anything in the logs that might be useful for us?

Logger: homeassistant
Source: components/flux/switch.py:256
First occurred: 4:37:22 PM (1 occurrences)
Last logged: 4:37:22 PM

Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/flux/switch.py", line 256, in async_flux_update
    if stop_time <= start_time:
TypeError: '<=' not supported between instances of 'NoneType' and 'datetime.datetime'

Additional information

No response

[gislis2]

Probably related to https://github.com/home-assistant/core/issues/36573

[probot-home-assistant[bot]]

flux documentation flux source _{^{(message by IssueLinks)}}

[gislis2]

Solved it by declaring the start_time and stop_time in yaml Seems like the defaults are broken (NoneType)

[ajan1]

Same problem here.

[gislis2]

Same problem here.

Did you try stating the 'optional' values ? (start_time and stop_time)

- platform: flux
  name: Flux
  start_time: "07:00"
  stop_time: "23:00"
  lights:
    - light.livingroom_tv_backlight
    - light.livingroom_reading
  ...

[github-actions[bot]]

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