Hey @Colin !
Thanks a lot for the response. Based on all the previous post that I have seen before, it seems that the people here is very cool 
For the OS:
pi@raspberrypi:~ cat /etc/os-release
PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"
NAME="Raspbian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"
pi@raspberrypi:~
How I installed, Node-RED
I basically followed the official instructions and entered this command:
bash <(curl -sL https://raw.githubusercontent.com/node-red/linux-installers/master/deb/update-nodejs-and-nodered)
After the installation basically everything was working fine. This is a Raspberry working with an card that was imaged just days ago, it's basically a clean installation. (there was something a bit strange at the beginning: when I selected an Item I could not delete it by pressing delete, I needed to double click and then click on delete. Could it be that the installation had something wrong since the beginning?)
Which nodes is it complaining about?
These ones, dear Colin:
The workspace contains some unknown node types:
** mqtt out*
** mqtt in*
** debug*
** switch*
Are you sure you want to deploy?
Also, I was thinking that this could be useful:
This is what I see when I start Node-RED:
pi@raspberrypi:~
pi@raspberrypi:~
pi@raspberrypi:~ $ node-red-pi --max-old-space-size=256
31 Jan 09:33:53 - [info]
Welcome to Node-RED
31 Jan 09:33:53 - [info] Node-RED version: v1.2.7
31 Jan 09:33:53 - [info] Node.js version: v12.20.1
31 Jan 09:33:53 - [info] Linux 5.4.83-v7+ arm LE
31 Jan 09:33:54 - [info] Loading palette nodes
31 Jan 09:33:55 - [warn] ------------------------------------------------------
31 Jan 09:33:55 - [warn] [node-red/debug] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/complete] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/catch] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/status] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/link] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/comment] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/unknown] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/switch] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/change] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/template] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/delay] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/mqtt] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/httpin] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/httprequest] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/tcpin] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/udp] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/CSV] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/HTML] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/XML] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/YAML] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/sort] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/batch] SyntaxError: Invalid or unexpected token
31 Jan 09:33:55 - [warn] [node-red/watch] SyntaxError: Unexpected token '*'
31 Jan 09:33:55 - [warn] ------------------------------------------------------
31 Jan 09:33:55 - [info] Settings file : /home/pi/.node-red/settings.js
31 Jan 09:33:55 - [info] Context store : 'default' [module=memory]
31 Jan 09:33:55 - [info] User directory : /home/pi/.node-red
31 Jan 09:33:55 - [warn] Projects disabled : editorTheme.projects.enabled=false
31 Jan 09:33:55 - [info] Flows file : /home/pi/.node-red/flows_raspberrypi.json
31 Jan 09:33:55 - [info] Server now running at http://127.0.0.1:1880/
31 Jan 09:33:55 - [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.
31 Jan 09:33:55 - [info] Waiting for missing types to be registered:
31 Jan 09:33:55 - [info] - mqtt-broker
31 Jan 09:33:55 - [info] - mqtt out
31 Jan 09:33:55 - [info] - mqtt in
31 Jan 09:33:55 - [info] - debug
31 Jan 09:33:55 - [info] - switch
Waiting for missing types to be registered^C31 Jan 09:35:05 - [info] Stopping flows
31 Jan 09:35:05 - [info] Stopped flows
pi@raspberrypi:~
pi@raspberrypi:~
Any feedback is welcome, thanks a lot.
Omar C