Zigbee2Mqtt stopped working after latest update was installed!

[upandabout]

The Zigbee2mqtt UI fails to load.
I can start Zigbee2mqtt from the HA addons section, but I can not start the Web UI. If I try i get this:
Zigbee2MQTT
The add-on is not running. Do you want to start it now? Starting it now does not work.
In the Zigbee2mqtt log I find this info with a lot of errors, but it's quite hard for me to figure out what to do to get it startet again, any help please, thanks:
After reading #24364
I Did try to add the bold line in the Zigbee2mqtt configuration yaml file, but it made no changes, still not working? It was unclear to me if, first of all if this info applys to my situation, second if I needed to change everything or just that line, it was also unclear to me if the hashtag should have been there or not, I did try with and without the hashtag, it didn't change anything,still not working?

serial:
port: >-
  /dev/serial/by-id/usb-ITead_Sonoff_Zigbee_3.0_USB_Dongle_Plus_16937884d19ded11887ecfa5a7669f5d-if00-port0
 adapter: zstack #  (I added this line to no help)
frontend:
enabled: true
port: 8099
device_options: {}
devices:

[22:20:05] INFO: Preparing to start...
[22:20:06] INFO: Socat not enabled
[22:20:06] INFO: Starting Zigbee2MQTT...
Starting Zigbee2MQTT without watchdog.
[2025-01-06 22:20:11] info: z2m: Logging to console, file (filename: log.log)
[2025-01-06 22:20:11] info: z2m: Starting Zigbee2MQTT version 2.0.0 (commit #unknown)
[2025-01-06 22:20:11] info: z2m: Starting zigbee-herdsman (3.2.1)
[2025-01-06 22:20:11] error: z2m: Error while starting zigbee-herdsman
[2025-01-06 22:20:11] error: z2m: Failed to start zigbee-herdsman
[2025-01-06 22:20:11] error: z2m: Check https://www.zigbee2mqtt.io/guide/installation/20_zigbee2mqtt-fails-to-start_crashes-runtime.html for possible solutions
[2025-01-06 22:20:11] error: z2m: Exiting...
[2025-01-06 22:20:11] error: z2m: Error: USB adapter discovery error (No valid USB adapter found). Specify valid 'adapter' and 'port' in your configuration.
at discoverAdapter (/app/node_modules/.pnpm/zigbee-herdsman@3.2.1/node_modules/zigbee-herdsman/src/adapter/adapterDiscovery.ts:523:15)
at processTicksAndRejections (node:internal/process/task_queues:105:5)
at Function.create (/app/node_modules/.pnpm/zigbee-herdsman@3.2.1/node_modules/zigbee-herdsman/src/adapter/adapter.ts:68:33)
at Controller.start (/app/node_modules/.pnpm/zigbee-herdsman@3.2.1/node_modules/zigbee-herdsman/src/controller/controller.ts:132:24)
at Zigbee.start (/app/lib/zigbee.ts:69:27)
at Controller.start (/app/lib/controller.ts:142:13)
at start (/app/index.js:161:5)
[2025-01-06 22:20:11] error: z2m: If this happens after updating to Zigbee2MQTT 2.0.0, see #24364

[andreasbrett]

Have you read the last line in that log?

[upandabout]

Yes, did you read my post?

[upandabout]

And thanks to some other helpfull person, that had no funny comments or questions about my ability to read, who just came straight to my rescue and pointed to the problem that I, as a non software developer, had no chance to figure out my self. I see many others with the same question, but many not getting a propper answer. The answer, to the problem was in the original coding line that did work before the update, but not after the update, the coding has to look like this, with 2 indentations (spaces) in front of port and adapter:

serial:
  port: /dev/serial/by-id/usb-ITead_Sonoff_Zigbee_3.0_USB_Dongle_Plus_16937884d19ded11887ecfa5a7669f5d-if00-port0
  adapter: zstack # 

[Koenkk]

This is one of the Zigbee2MQTT 2.0.0 breaking changes, see #24364 on how to fix this.