SOLVED: NodeRED, nodes missing and unable to install from palette after. HA Backup Restore

[Chykan (Hunter)]

CAUSE
Error code 404 for node-red-contrib-stoptimer3 was caused by the node being removed from Library - Node-RED. I had downloaded it when it was available.

During the back-up and restore process, NodeRED needs to re-install all nodes. The 404 error caused it to stop installing the other nodes.

2025-04-22T09:33:37.049Z [err] npm error code E404

2025-04-22T09:33:37.050Z [err] npm error 404 Not Found - GET https://registry.npmjs.org/node-red-contrib-stoptimer3/-/node-red-contrib-stoptimer3-0.1.2.tgz - Not found

2025-04-22T09:33:37.050Z [err] npm error 404

2025-04-22T09:33:37.050Z [err] npm error 404 'node-red-contrib-stoptimer3@https://registry.npmjs.org/node-red-contrib-stoptimer3/-/node-red-contrib-stoptimer3-0.1.2.tgz' is not in this registry.

SOLUTION

With the help of Chat GPT. FULLY RECOVERED. I can recommend pasting the logs contained in my original post, into Chat GPT to help identify the offending Node.

Step-by-Step: Modify package.json

0. Stop the Node-RED add-on from the Home Assistant UI:

1. Open your package.json file in /addon_configs/. I did this via via the file editor add-on:

bash

CopyEdit

/addon_configs/a0d7b954_nodered/package.json

Keep hitting back button in File Editor to get to root of drive.

2. Locate the line referencing node-red-contrib-stoptimer3, e.g.:
   
   

json

CopyEdit

"node-red-contrib-stoptimer3": "0.1.2"

5. Modify it to a valid version, I found that node-red-contrib-stoptimer3 did not exist anymore, I changed it to node-red-contrib-stoptimer2 after seraching Library - Node-RED

json

CopyEdit

"node-red-contrib-stoptimer2": "0.1.1"

Or, if you no longer use it:

json

CopyEdit

// Just remove the entire line.

6. Save the file:

7. Restart the Node-RED add-on from the Home Assistant UI:

All the other nodes have loaded now, I am working through my flows to replace all the timers I had in place.

,

8. Check previous config for each timer Right click on each unknown:stoptimer3, Select Export and check the duration.
   
   

9. Replace each node with stoptimer2 nodes
10. In the end I replaced all Stoptimer2 nodes with built in Delay nodes to hopefully prevent this happening again