ERROR Error binary size: Error: ESP does not have enough space to store OTA file

[kg4iae]

I installed the switch according to the instructions. It's working in Home Assistant and controlling the lights. I wanted to add the Rotate Color YAML. I made the change according to the docs, and Installed it.

I got it working. (Press the button and it cycles through the colors.)

Next I added the Entity of the light I want to control. That's when I get this error:

INFO Successfully compiled program.
INFO Resolving IP address of kauf-rgbsw-e35c1d.local
INFO -> 192.168.1.21
INFO Uploading /data/kauf-rgbsw-e35c1d/.pioenvs/kauf-rgbsw-e35c1d/firmware.bin (610624 bytes)
INFO Compressed to 418818 bytes
ERROR Error binary size: Error: ESP does not have enough space to store OTA file. Please try flashing a minimal firmware (remove everything except ota)

Here's my YAML (ESPHome)
substitutions:
name: kauf-rgbsw-e35c1d
hass_light_entity: light.frontroomrgb
packages:
Kauf.RGBSw: github://KaufHA/kauf-rgb-switch/kauf-rgbs.yaml
rotate_colors: github://bkaufx/kauf-rgb-switch/yaml-features/rotate-colors-sync-to-ha-light.yaml
esphome:
name: ${name}
name_add_mac_suffix: false
api:
encryption:
key: <--Removed-->
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password

Please help.

[bkaufx]

I would get rid of API encryption. ESPHome added it by default but it takes up a ton of space and IMO is not that important. You'll have to remove and re-add to home assistant after flashing without API encryption (this shouldn't impact anything, all your entities should show back up with the exact same names and retain their history). If you want to keep API encryption then you'll probably have to flash over to a smaller intermediate firmware to update. Hopefully ESPHome will do this automatically at some point in the future.

[bkaufx]

Get rid of these lines in the yaml:

api:
  encryption:
    key: <--Removed-->

[kg4iae]

Thanks for the info. It fixed my problem.