Nodered not starting

Third party integrations Node-RED
1

Recently, nodered has been failing to start in my HA. I am unsure of when this became an issue so cannot trace it back to a specific update.

I have had a few flows which were flows imported from forums for use in later Flow projects so I know that some of thesesl would not be correctly set up for my system (other people’s device names etc).

However, I managed to disable those identified in Safe Mode so thought it would now be OK. However after the most recent HA upgrade and hence a restart, still failing to start. Logs are below:

14 Jul 01:58:45 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:58:45 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:58:50 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:58:50 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:58:55 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:58:55 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:59:00 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:59:00 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:59:05 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:59:05 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:59:10 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:59:10 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:59:15 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:59:15 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:59:20 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:59:20 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:59:25 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:59:25 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:59:30 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:59:30 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:59:35 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:59:35 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:59:43 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:59:43 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:59:48 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:59:48 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:59:53 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:59:53 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 01:59:58 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 01:59:58 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:00:03 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:00:03 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:00:08 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:00:08 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:00:13 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:00:13 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:00:18 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:00:18 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:00:23 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:00:23 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:00:28 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:00:28 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:00:33 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:00:33 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:00:38 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:00:38 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:00:43 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:00:43 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:00:48 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:00:48 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:00:53 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:00:54 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:00:58 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:01:00 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:01:04 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:01:07 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:01:09 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:01:12 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:01:14 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:01:17 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:01:19 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:01:22 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:01:24 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:01:27 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:01:29 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:01:32 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:01:34 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:01:37 - [info] [server:Home assistant] Connecting to http://supervisor/core
14 Jul 02:01:39 - [info] [server:Home assistant] Connected to http://supervisor/core
14 Jul 02:01:39 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 02:01:41 - [info] [server:Home Assistant] Connected to http://supervisor/core
14 Jul 02:02:17 - [info] [server:Home assistant] Connection closed to http://supervisor/core
14 Jul 02:02:17 - [info] [server:Home assistant] Connection closed to http://supervisor/core
14 Jul 02:02:17 - [red] Uncaught Exception:
14 Jul 02:02:17 - [error] UnhandledPromiseRejection: This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). The promise rejected with the reason "#<Object>".
[02:02:17] INFO: Service Node-RED exited with code 1 (by signal 0)
s6-rc: info: service legacy-services: stopping
s6-rc: info: service legacy-services successfully stopped
s6-rc: info: service nginx: stopping
[02:02:18] INFO: Service NGINX exited with code 0 (by signal 0)
s6-rc: info: service nginx successfully stopped
s6-rc: info: service init-nginx: stopping
s6-rc: info: service nodered: stopping
s6-rc: info: service init-nginx successfully stopped
s6-rc: info: service nodered successfully stopped
s6-rc: info: service init-nodered: stopping
s6-rc: info: service init-nodered successfully stopped
s6-rc: info: service init-customizations: stopping
s6-rc: info: service init-customizations successfully stopped
s6-rc: info: service legacy-cont-init: stopping
s6-rc: info: service legacy-cont-init successfully stopped
s6-rc: info: service fix-attrs: stopping
s6-rc: info: service base-addon-log-level: stopping
s6-rc: info: service fix-attrs successfully stopped
s6-rc: info: service base-addon-log-level successfully stopped
s6-rc: info: service base-addon-banner: stopping
s6-rc: info: service base-addon-banner successfully stopped
s6-rc: info: service s6rc-oneshot-runner: stopping
s6-rc: info: service s6rc-oneshot-runner successfully stopped```
2

Completely reinstalled including removing the nodered library to ensure no flows cause any issues.

Still did not work. The log is below:

s6-rc: info: service s6rc-oneshot-runner successfully started
s6-rc: info: service base-addon-banner: starting
-----------------------------------------------------------
 Add-on: Node-RED
 Flow-based programming for the Internet of Things
-----------------------------------------------------------
 Add-on version: 14.3.0
 You are running the latest version of this add-on.
 System: Home Assistant OS 10.3  (aarch64 / raspberrypi4-64)
 Home Assistant Core: 2023.7.2
 Home Assistant Supervisor: 2023.07.1
-----------------------------------------------------------
 Please, share the above information when looking for help
 or support in, e.g., GitHub, forums or the Discord chat.
-----------------------------------------------------------
s6-rc: info: service base-addon-banner successfully started
s6-rc: info: service fix-attrs: starting
s6-rc: info: service base-addon-log-level: starting
s6-rc: info: service fix-attrs successfully started
s6-rc: info: service base-addon-log-level successfully started
s6-rc: info: service legacy-cont-init: starting
s6-rc: info: service legacy-cont-init successfully started
s6-rc: info: service init-nginx: starting
s6-rc: info: service init-customizations: starting
s6-rc: info: service init-customizations successfully started
s6-rc: info: service init-nodered: starting
s6-rc: info: service init-nginx successfully started
s6-rc: info: service init-nodered successfully started
s6-rc: info: service nodered: starting
s6-rc: info: service nodered successfully started
s6-rc: info: service nginx: starting
s6-rc: info: service nginx successfully started
s6-rc: info: service legacy-services: starting
s6-rc: info: service legacy-services successfully started
[21:43:46] INFO: Starting Node-RED...
> start
> node $NODE_OPTIONS node_modules/node-red/red.js --settings /etc/node-red/config.js
14 Jul 21:43:52 - [info] 
Welcome to Node-RED
===================
14 Jul 21:43:52 - [info] Node-RED version: v3.0.2
14 Jul 21:43:52 - [info] Node.js  version: v18.16.1
14 Jul 21:43:52 - [info] Linux 6.1.21-v8 arm64 LE
14 Jul 21:43:54 - [info] Loading palette nodes
14 Jul 21:44:02 - [info] Dashboard version 3.5.0 started at /endpoint/ui
14 Jul 21:44:04 - [info] Settings file  : /etc/node-red/config.js
14 Jul 21:44:04 - [info] Context store  : 'default' [module=memory]
14 Jul 21:44:04 - [info] User directory : /config/node-red/
14 Jul 21:44:04 - [warn] Projects disabled : editorTheme.projects.enabled=false
14 Jul 21:44:04 - [info] Flows file     : /config/node-red/flows.json
14 Jul 21:44:04 - [warn] Encrypted credentials not found
14 Jul 21:44:04 - [info] Server now running at http://127.0.0.1:46836/
14 Jul 21:44:04 - [info] Starting flows
14 Jul 21:44:04 - [info] Started flows
[21:44:04] INFO: Starting NGinx...
14 Jul 21:44:09 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:44:14 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:44:19 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:44:24 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:44:29 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:44:34 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:44:40 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:44:45 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:44:50 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:44:55 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:45:00 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:45:05 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:45:10 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:45:15 - [info] [server:Home Assistant] Connecting to http://supervisor/core
14 Jul 21:45:23 - [info] [server:Home Assistant] Connected to http://supervisor/core
14 Jul 21:45:44 - [info] [server:Home Assistant] Connection closed to http://supervisor/core
14 Jul 21:45:44 - [info] [server:Home Assistant] Connection closed to http://supervisor/core
14 Jul 21:45:44 - [red] Uncaught Exception:
14 Jul 21:45:44 - [error] UnhandledPromiseRejection: This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). The promise rejected with the reason "#<Object>".```
3

Try adding this to the top of your settings.js file to get a better description of the error.

process.on('unhandledRejection', (reason, p) => {
  console.log('Unhandled Rejection: ', p, 'reason:', reason);
});
4

Do you have any errors in your HA logs about why NR is disconnecting from HA? Might need to turn logging on for the websocket component.

5

Hi. Tried the advice above but, possibly because of my own ignorance, found no info. So, bit the bullet and restored HA to a 3 week old backup. Now being careful with backing up before updates. So far, Nodered still working and I believe I am now more up-to-date than when Nodered started failing.