'TypeError: t is undefined' when main entity is not defined.

[aIexus]

I have strange error [TypeError: t is undefined] when I make undefined the main entity:

           - type: custom:room-card
             title: Hallway
             hide_title: false
             icon: mdi:door-closed-lock
            #  entity: sensor.hallway_lumi_weather_temperature
             show_icon: true
            #  tap_action: none
            #  double_tap_action: none
             entities:
               - entity: light.hallway_rgb_bulb
                 show_icon: true
                 state_color: true
                 name: Light
               - entity: binary_sensor.tapo_camera_motion
                 show_icon: true
                 state_color: true
                 hide_unavailable: true
                 name: Motion
               - entity: camera.tapo_camera_sd
                 show_icon: true
                 name: Camera
               - entity: binary_sensor.hallway_entrance_door_contact
                 show_icon: true
                 state_color: true
                 name: Door
             info_entities:
               - entity: sensor.hallway_lumi_weather_humidity
                 format: precision1
               - entity: sensor.hallway_lumi_weather_temperature
                 format: precision1

Originally posted by @aIexus in #56 (comment)

[marcokreeft87]

Which version do you use?

[aIexus]

1.5.1

[marcokreeft87]

I dont get that error. Are you using only entities that are available?

[aIexus]

Sure.
When I uncomment commented lines - there will be no errors.

[marcokreeft87]

I think you need to try some thing by yourself. If I cant reproduce, I cant fix it. Try and get more info about the issue. Provide screenshots (with the error visible in console).

[aIexus]

[aIexus]

[aIexus]

How it is possible?

[aIexus]

After clearing cached web content - problem disappears.

[marcokreeft87]

Yeah HA is weird with cache :(