# Problems with Node-Red flow credentials
**URL:** https://discourse.nodered.org/t/problems-with-node-red-flow-credentials/33597
**Category:** General
**Created:** [1 October 2020 00:58 UTC](https://discourse.nodered.org/t/problems-with-node-red-flow-credentials/33597 "2020-10-01T00:58:35Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@MasterOne](https://discourse.nodered.org/u/MasterOne)
#### Post date: [1 October 2020 00:58 UTC](https://discourse.nodered.org/t/problems-with-node-red-flow-credentials/33597/1 "2020-10-01T00:58:35Z")
I recently installed Node-Red with their script command ```
bash \<(curl -sL [https://raw.githubusercontent.com/node-red/linux-installers/master/deb/update-nodejs-and-nodered](https://raw.githubusercontent.com/node-red/linux-installers/master/deb/update-nodejs-and-nodered))
```auto
"Welcome to Node-RED
===================
30 Sep 20:03:51 - [info] Node-RED version: v1.1.3
30 Sep 20:03:51 - [info] Node.js version: v12.18.4
30 Sep 20:03:51 - [info] Linux 5.4.51-v7+ arm LE
30 Sep 20:03:52 - [info] Loading palette nodes
30 Sep 20:03:54 - [info] Settings file : /home/pi/.node-red/settings.js
30 Sep 20:03:54 - [info] Context store : 'default' [module=memory]
30 Sep 20:03:54 - [info] User directory : /home/pi/.node-red
30 Sep 20:03:54 - [warn] Projects disabled : editorTheme.projects.enabled=false
30 Sep 20:03:54 - [info] Flows file : /home/pi/.node-red/flows_raspberrypi.json
30 Sep 20:03:54 - [info] Creating new flow file
30 Sep 20:03:54 - [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.
---------------------------------------------------------------------
30 Sep 20:03:54 - [info] Starting flows
30 Sep 20:03:54 - [info] Started flows
30 Sep 20:03:54 - [error] Unable to listen on http://127.0.0.1:1880/
30 Sep 20:03:54 - [error] Error: port in use"
Any suggestions how to solve it?
```
---
### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [1 October 2020 07:34 UTC](https://discourse.nodered.org/t/problems-with-node-red-flow-credentials/33597/2 "2020-10-01T07:34:40Z")
No issues there except the port is being used by some other device. Try starting with a different port,
[https://nodered.org/docs/getting-started/local#command-line-usage](https://nodered.org/docs/getting-started/local#command-line-usage).
Or set the port in the settings js,
[https://nodered.org/docs/user-guide/runtime/configuration](https://nodered.org/docs/user-guide/runtime/configuration)
---
### Author:  [@knolleary](https://discourse.nodered.org/u/knolleary)
#### Post date: [1 October 2020 08:07 UTC](https://discourse.nodered.org/t/problems-with-node-red-flow-credentials/33597/3 "2020-10-01T08:07:53Z")
> [@E1cid](#):
>
> No issues there except the port is being used by some other device.
Which is probably another instance of Node-RED. So before going straight to changing the port, the question is whether they want two instances of node-red running or not.
---
### Author:  [@E1cid](https://discourse.nodered.org/u/E1cid)
#### Post date: [1 October 2020 08:15 UTC](https://discourse.nodered.org/t/problems-with-node-red-flow-credentials/33597/4 "2020-10-01T08:15:55Z")
Probably.
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [30 November 2020 08:16 UTC](https://discourse.nodered.org/t/problems-with-node-red-flow-credentials/33597/5 "2020-11-30T08:16:00Z")
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