Blank webpage when starting Node-Red

General
1

Hello, I'm rather new to using Node-Red and Raspberry Pi as well. I'm currently having issues of my webpage not loading the UI and been trying to fix it for a while now. Seems to occur when monaco is not defined? I've been reinstalling a few times as well.

Using a Raspberry Pi Sense HAT for this.

image
image1381Ă—841 68.7 KB 

Welcome to Node-RED
===================
7 Aug 16:48:13 - [info] Node-RED version: v3.0.2
7 Aug 16:48:13 - [info] Node.js  version: v18.7.0
7 Aug 16:48:13 - [info] Linux 4.19.75-v7+ arm LE
7 Aug 16:48:17 - [info] Loading palette nodes
7 Aug 16:48:20 - [info] Settings file  : /home/pi/.node-red/settings.js
7 Aug 16:48:20 - [info] Context store  : 'default' [module=memory]
7 Aug 16:48:20 - [info] User directory : /home/pi/.node-red
7 Aug 16:48:20 - [warn] Projects disabled : editorTheme.projects.enabled=false
7 Aug 16:48:20 - [info] Flows file     : /home/pi/.node-red/flows.json
7 Aug 16:48:20 - [info] Creating new flow file
7 Aug 16:48:20 - [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.
---------------------------------------------------------------------
7 Aug 16:48:20 - [warn] Encrypted credentials not found
7 Aug 16:48:20 - [info] Server now running at http://127.0.0.1:1880/
7 Aug 16:48:20 - [info] Starting flows
7 Aug 16:48:20 - [info] Started flows
2

Hi, how did you install node-red? Also, what custom nodes do you have installed?

Also try stopping the node-red server and starting manually in safe mode.

If it isn't a node causing the problem, you probably need to reinstall node-red I think.

3

Try a different browser on a different computer (use http://ip-of-ras-pi:1880 on other computer)

What browser is that in the picture? Also, what is its version number?

4

I did the following command in the Raspberry Pi terminal.

bash <(curl -sL https://raw.githubusercontent.com/node-red/linux-installers/master/deb/update-nodejs-and-nodered)

As for custom nodes, the only thing I remember while downloading it was the installation asking to download Pi-specific nodes, which I said yes.

I have reinstalled node-red couples time now and seems to give the same result. Though, may I know how do I start it in safe mode?

5

Since I'm using the Raspberry Pi Sense Hat, I'm currently using the chromium browser.

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6

That doesn't mean you cannot use a browser on a separate computer. You do realise you can access node-red from any computer on your network?

Also, chromium v74 is probably too far out of date to support one or more features required to run this. Update chromium or use a separate computer.

7

As already Suggested try to update chromium first, mine is 92v and it's working fine. I also have firefox-esr and works fine too. My node version is 12, and I did install it by the installer, NR is 3.0.0. Monaco is the default for V.3.x no need to worry about that.

1 Like
8

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