Trouble installing node-red


I am trying to install node-red locally following the directions on this site for Windows 10. Using current version of node-red and LTS node.js 12.22..1 X64 per the note-red web site.

Here is the warning and error messages I get when I try to start node-red - both from the normal powershell prompt and from the node.js prompt.

From NODE.js prompt

Your environment has been set up for using Node.js 12.22.1 (x64) and npm.

18 May 13:53:22 - [info]

Welcome to Node-RED

18 May 13:53:22 - [info] Node-RED version: v1.3.5
18 May 13:53:22 - [info] Node.js version: v12.22.1
18 May 13:53:22 - [info] Windows_NT 10.0.19042 x64 LE
18 May 13:53:23 - [info] Loading palette nodes
18 May 13:53:25 - [info] Settings file : C:\Users\dvadmin.node-red\settings.js
18 May 13:53:25 - [info] Context store : 'default' [module=memory]
18 May 13:53:25 - [info] User directory : \Users\dvadmin.node-red
18 May 13:53:25 - [warn] Projects disabled : editorTheme.projects.enabled=false
18 May 13:53:25 - [info] Flows file : \Users\dvadmin.node-red\flows_Dave-Intel.json
18 May 13:53:25 - [info] Creating new flow file
18 May 13:53:25 - [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.

18 May 13:53:25 - [error] Uncaught Exception:
18 May 13:53:25 - [error] Error: listen EACCES: permission denied
at Server.setupListenHandle [as _listen2] (net.js:1299:21)
at listenInCluster (net.js:1364:12)
at doListen (net.js:1501:7)
at processTicksAndRejections (internal/process/task_queues.js:85:21)

C:\Users\dvadmin>node --version && npm --version

Any suggestions and help gratefully accepted!

Hello @dvenus,

Welcome to the forum!

Do you have a firewall activated during install? Maybe you should give it a try to deactivate the firewall and install again.

If the installation works you should check how to setup an exception for the node-red port.


Something to do with the way you installed it. Did you install for all users or just your dvadmin.node-red user? And did you install from an elevated command prompt or a standard one?

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