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General
1

Unexpected Node Error

Info:
Node object is not a node-red Node
Stack:
TypeError: Cannot read property 'length' of undefined
at TimeSchedulerNode.Node.close (/usr/lib/node_modules/node-red/node_modules/@node-red/runtime/lib/nodes/Node.js:319:41)
at stopNode (/usr/lib/node_modules/node-red/node_modules/@node-red/runtime/lib/flows/Flow.js:746:31)
at Flow.stop (/usr/lib/node_modules/node-red/node_modules/@node-red/runtime/lib/flows/Flow.js:388:35)
at /usr/lib/node_modules/node-red/node_modules/@node-red/runtime/lib/flows/index.js:482:43
at Array.forEach ()
at stop (/usr/lib/node_modules/node-red/node_modules/@node-red/runtime/lib/flows/index.js:478:19)
at /usr/lib/node_modules/node-red/node_modules/@node-red/runtime/lib/flows/index.js:220:20

Please report this issue, including the information logged above:
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2

Thanks for reporting, but we need some context.

  • What nodes do you have installed (check your package.json file in ~/.node-red)
  • Version of Node RED
  • Version of Node
  • OS
  • Full Node RED start up log
3

Startup log:
28 Feb 20:38:25 - [info]

Welcome to Node-RED

28 Feb 20:38:25 - [info] Node-RED version: v3.1.5
28 Feb 20:38:25 - [info] Node.js version: v20.11.1
28 Feb 20:38:25 - [info] Linux 6.1.21-v8+ arm64 LE
28 Feb 20:38:26 - [info] Loading palette nodes
28 Feb 20:38:27 - [info] Dashboard version 1.0.2 started at /ui
28 Feb 20:38:29 - [warn] ------------------------------------------------------
28 Feb 20:38:29 - [warn] [node-red-contrib-moment2/moment] 'moment' already registered by module node-red-contrib-moment
28 Feb 20:38:29 - [warn] ------------------------------------------------------
28 Feb 20:38:29 - [info] Settings file : /home/lennart/.node-red/settings.js
28 Feb 20:38:29 - [info] Context store : 'default' [module=memory]
28 Feb 20:38:29 - [info] User directory : /home/lennart/.node-red
28 Feb 20:38:29 - [warn] Projects disabled : editorTheme.projects.enabled=false
28 Feb 20:38:29 - [info] Flows file : /home/lennart/.node-red/start
28 Feb 20:38:29 - [info] Creating new flow file
28 Feb 20:38:29 - [warn]

Your flow credentials file is encrypted using a system-generated key.

If the system-generated key is lost for any reason, your credentials
file will not be recoverable, you will have to delete it and re-enter
your credentials.

You should set your own key using the 'credentialSecret' option in
your settings file. Node-RED will then re-encrypt your credentials
file using your chosen key the next time you deploy a change.

28 Feb 20:38:29 - [warn] Encrypted credentials not found
28 Feb 20:38:29 - [error] Unable to listen on http://127.0.0.1:1880/
28 Feb 20:38:29 - [error] Error: port in use

4

The error turned up after upgrading nodes.js

I do not know how to list all nodes used, it is 20

5

That probably explains it. After upgrading nodejs it is necessary to rebuild modules that have compiled components. If you are on a Debian based system (such as Ubuntu or Pi OS) the easiest way to do that is to re-run the install script from Running on Raspberry Pi : Node-RED

6

I don't think this is related to the problem you've reported. However, you have 2 nodes installed that have clashing names. The original moment node written by me that has a full readme and was updated a few months ago and a copy written by someone else that has no readme so it isn't clear what it is for and hasn't been updated in 8 years.

7

Here is the package.json file
"name": "node-red-project",
"description": "initially created for you by Node-RED 2.2.2 ",
"version": "0.0.1",
"private": true,
"dependencies": {
"dashboard-evi": "~1.0.2",
"node-red-contrib-buffer-parser": "^3.2.2",
"node-red-contrib-moment": "~5.0.0",
"node-red-contrib-moment2": "~1.0.5",
"node-red-contrib-mssql": "0.0.7",
"node-red-contrib-ownet": "~0.1.5",
"node-red-contrib-persist": "~1.1.1",
"node-red-contrib-play-audio": "^2.5.0",
"node-red-contrib-timerswitch": "~1.4.0",
"node-red-contrib-ui-artless-gauge": "~0.3.12",
"node-red-contrib-ui-time-scheduler-italian": "~1.17.8",
"node-red-node-email": "~1.18.2",
"node-red-node-pi-gpio": "^2.0.6",
"node-red-node-ping": "^0.3.3",
"node-red-node-random": "^0.4.1",
"node-red-node-serialport": "^2.0.2",
"node-red-node-smooth": "^0.1.2",
"nodered-contrib-sms77": "~3.2.2"

8

As I say, get rid of moment2 and then follow Colin's guidance and do:

cd ~/.node-red
npm rebuild

Then restart and see if that helps.

9

I believe the script will do that for you.

I think that dashboard may well not be compatible with node-red-contrib-ui-artless-gauge. Unless you have a good reason for using it I recommend the dashboard usually used which is node-red-dashboard.

1 Like
10

I have finally got rid of the error. But I did not manage to un-install Moment 2. It is claimed to be in use even after deleting it from the flow where I used it.
Thanks for your help!

11

In a command window go into the .node-red folder and run
npm remove node-red-contrib-moment2
then restart node-red.